{"id":32467,"date":"2022-10-18T18:29:16","date_gmt":"2022-10-18T16:29:16","guid":{"rendered":"https:\/\/ssef.ch\/research-library\/"},"modified":"2023-07-07T12:42:29","modified_gmt":"2023-07-07T10:42:29","slug":"forschung","status":"publish","type":"page","link":"https:\/\/www.ssef.ch\/de\/forschung\/","title":{"rendered":"Forschung"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"32467\" class=\"elementor elementor-32467 elementor-14885\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1316efd elementor-section-full_width elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"1316efd\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-216179a\" data-id=\"216179a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-473ce0e elementor-widget elementor-widget-text-editor\" data-id=\"473ce0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Want to learn more about our history and research vision at SSEF? <span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.ssef.ch\/about-ssef\/\">Click here<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-edaeb01 elementor-section-full_width elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"edaeb01\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-a2e3030\" data-id=\"a2e3030\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0bac6c8 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"0bac6c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1>Erkunden Sie<br \/>unsere Research Library<\/h1>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-65c1a39\" data-id=\"65c1a39\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c88ea5e elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"c88ea5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>Search for articles<\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2027669 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2027669\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<form data-min-no-for-search=1 data-result-box-max-height=400 data-form-id=29976 class=\"is-search-form is-form-style is-form-style-1 is-form-id-29976 is-ajax-search\" action=\"https:\/\/www.ssef.ch\/de\/\" method=\"get\" role=\"search\" ><label for=\"is-search-input-29976\"><span class=\"is-screen-reader-text\">Search for:<\/span><input  type=\"search\" id=\"is-search-input-29976\" name=\"s\" value=\"\" class=\"is-search-input\" placeholder=\"Search here...\" autocomplete=off \/><span class=\"is-loader-image\" style=\"display: none;background-image:url(https:\/\/www.ssef.ch\/wp-content\/plugins\/add-search-to-menu\/public\/images\/spinner.gif);\" ><\/span><\/label><input type=\"submit\" value=\"Ok\" class=\"is-search-submit\" \/><input type=\"hidden\" name=\"id\" value=\"29976\" \/><input type=\"hidden\" name=\"post_type\" value=\"post\" \/><\/form>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4dbf9c7 elementor-widget elementor-widget-text-editor\" data-id=\"4dbf9c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>Categories<\/h4><p><a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\">Research Blog<\/a><br \/><a href=\"https:\/\/www.ssef.ch\/de\/category\/research-articles\/\">Research Articles<\/a><br \/><a href=\"https:\/\/www.ssef.ch\/de\/category\/presentations\/\">Presentations<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-61ff17e\" data-id=\"61ff17e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f77958c elementor-widget elementor-widget-sidebar\" data-id=\"f77958c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"sidebar.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"widget widget_tag_cloud\" data-area=\"research-column-2\"><h4 class=\"qodef-widget-title\">Tags<\/h4><div class=\"tagcloud\"><a href=\"https:\/\/www.ssef.ch\/de\/tag\/agedating\/\" class=\"tag-cloud-link tag-link-739 tag-link-position-1\" style=\"font-size: 11.60396039604pt;\" aria-label=\"Age Dating (17\u00a0Eintr\u00e4ge)\">Age Dating<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/diamond\/\" class=\"tag-cloud-link tag-link-725 tag-link-position-2\" style=\"font-size: 20.059405940594pt;\" aria-label=\"Diamond (73\u00a0Eintr\u00e4ge)\">Diamond<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/dna\/\" class=\"tag-cloud-link tag-link-738 tag-link-position-3\" style=\"font-size: 11.881188118812pt;\" aria-label=\"DNA (18\u00a0Eintr\u00e4ge)\">DNA<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/emerald\/\" class=\"tag-cloud-link tag-link-727 tag-link-position-4\" style=\"font-size: 18.673267326733pt;\" aria-label=\"Emerald (58\u00a0Eintr\u00e4ge)\">Emerald<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/gemmology\/\" class=\"tag-cloud-link tag-link-742 tag-link-position-5\" style=\"font-size: 21.445544554455pt;\" aria-label=\"Gemmology (93\u00a0Eintr\u00e4ge)\">Gemmology<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/geochemistry\/\" class=\"tag-cloud-link tag-link-741 tag-link-position-6\" style=\"font-size: 16.732673267327pt;\" aria-label=\"Geochemistry (42\u00a0Eintr\u00e4ge)\">Geochemistry<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/jade\/\" class=\"tag-cloud-link tag-link-743 tag-link-position-7\" style=\"font-size: 8pt;\" aria-label=\"Jade (9\u00a0Eintr\u00e4ge)\">Jade<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/methods\/\" class=\"tag-cloud-link tag-link-730 tag-link-position-8\" style=\"font-size: 16.871287128713pt;\" aria-label=\"Methods (43\u00a0Eintr\u00e4ge)\">Methods<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/organics\/\" class=\"tag-cloud-link tag-link-740 tag-link-position-9\" style=\"font-size: 12.712871287129pt;\" aria-label=\"Organics (21\u00a0Eintr\u00e4ge)\">Organics<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/origins\/\" class=\"tag-cloud-link tag-link-733 tag-link-position-10\" style=\"font-size: 18.950495049505pt;\" aria-label=\"Origins (61\u00a0Eintr\u00e4ge)\">Origins<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/othergemstones\/\" class=\"tag-cloud-link tag-link-736 tag-link-position-11\" style=\"font-size: 21.722772277228pt;\" aria-label=\"Other Gemstones (97\u00a0Eintr\u00e4ge)\">Other Gemstones<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/pearl\/\" class=\"tag-cloud-link tag-link-724 tag-link-position-12\" style=\"font-size: 22pt;\" aria-label=\"Pearl (101\u00a0Eintr\u00e4ge)\">Pearl<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/ruby\/\" class=\"tag-cloud-link tag-link-728 tag-link-position-13\" style=\"font-size: 17.980198019802pt;\" aria-label=\"Ruby (51\u00a0Eintr\u00e4ge)\">Ruby<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/sapphire\/\" class=\"tag-cloud-link tag-link-726 tag-link-position-14\" style=\"font-size: 19.089108910891pt;\" aria-label=\"Sapphire (62\u00a0Eintr\u00e4ge)\">Sapphire<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/spinel\/\" class=\"tag-cloud-link tag-link-735 tag-link-position-15\" style=\"font-size: 12.158415841584pt;\" aria-label=\"Spinel (19\u00a0Eintr\u00e4ge)\">Spinel<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/synthetics\/\" class=\"tag-cloud-link tag-link-732 tag-link-position-16\" style=\"font-size: 16.039603960396pt;\" aria-label=\"Synthetics (37\u00a0Eintr\u00e4ge)\">Synthetics<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/tourmaline\/\" class=\"tag-cloud-link tag-link-734 tag-link-position-17\" style=\"font-size: 14.237623762376pt;\" aria-label=\"Tourmaline (27\u00a0Eintr\u00e4ge)\">Tourmaline<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/traceability\/\" class=\"tag-cloud-link tag-link-737 tag-link-position-18\" style=\"font-size: 12.435643564356pt;\" aria-label=\"Traceability (20\u00a0Eintr\u00e4ge)\">Traceability<\/a>\n<a href=\"https:\/\/www.ssef.ch\/de\/tag\/treatments\/\" class=\"tag-cloud-link tag-link-731 tag-link-position-19\" style=\"font-size: 21.306930693069pt;\" aria-label=\"Treatments (90\u00a0Eintr\u00e4ge)\">Treatments<\/a><\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-f1c980c\" data-id=\"f1c980c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1fcb8dc elementor-widget elementor-widget-laurits_core_button\" data-id=\"1fcb8dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"laurits_core_button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<a class=\"qodef-shortcode qodef-m qodef-button qodef-layout--filled qodef-html--link\" href=\"https:\/\/www.ssef.ch\/ssef-facette\/\" target=\"_self\"  >\n\t<span class=\"qodef-m-text\">Facette magazine<\/span>\n<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5aee6b7 elementor-section-full_width elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"5aee6b7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a9ec30a\" data-id=\"a9ec30a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0898306 elementor-widget elementor-widget-laurits_core_blog_list\" data-id=\"0898306\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"laurits_core_blog_list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"qodef-shortcode qodef-m qodef-blog qodef-item-layout--info-bottom qodef-item-border--no qodef-side-border--on qodef-hover-animation--no qodef-appear-animation--no qodef-grid qodef-layout--columns qodef-gutter--huge qodef-col-num--3 qodef-item-layout--info-bottom qodef-pagination--on qodef-pagination-type--infinite-scroll qodef-responsive--predefined\" 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data-appearing-delay=\"0\">\n\t\t<div class=\"qodef-grid-inner clear\">\n\t\t<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-50051 post type-post status-publish format-standard has-post-thumbnail hentry category-research-articles tag-tourmaline library_author-h-a-o-wang library_author-m-walle library_author-m-s-krzemnicki library_author-r-schultz-guttler\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/unsupervised-machine-learning-for-the-geographic-origin-determination-of-cu-bearing-tourmaline\/\">\n\t\t\t<img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/01\/New-insights-on-Paraiba-tourmaline-origin-determination-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/07\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/unsupervised-machine-learning-for-the-geographic-origin-determination-of-cu-bearing-tourmaline\/\">\n\t\tUnsupervised Machine Learning for the Geographic Origin Determination of Cu-bearing Tourmaline\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Determining the geographic origin of Cu-bearing tourmaline poses a significant challenge in gemmology, particularly when traditional microscopic methods yield inconclusive results. <\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-articles\/\" rel=\"tag\">Research Articles<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47669 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-ruby\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/winza-ruby-with-hollow-tube-as-a-helix\/\">\n\t\t\t<img decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Winza-ruby-with-hollow-tube-as-a-helix-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/winza-ruby-with-hollow-tube-as-a-helix\/\">\n\t\tWinza ruby with hollow tube as a helix\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">In late 2007, a new deposit of rubies was discovered near the village of Winza in central Tanzania, creating quite a stir in the trade due to the quality and vivid colour of these rubies.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47771 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-diamond\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/eclogitic-orange-yellow-diamonds-coloured-by-the-480-nm-band\/\">\n\t\t\t<img decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/eclogitic-orange-yellow-diamonds-coloured-by-the-480-nm-band-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/eclogitic-orange-yellow-diamonds-coloured-by-the-480-nm-band\/\">\n\t\tEclogitic orange-yellow diamonds coloured by the 480 nm band\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">We recently acquired three orange-yellow diamonds for the SSEF collection research. These diamonds immediately retained our attention when we did the UV-vis-NIR spectra to identify the defect at the o<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47936 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-pearl\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/old-cultured-pearl-necklaces\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Old-cultured-pearl-necklaces-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/old-cultured-pearl-necklaces\/\">\n\t\tOld cultured pearl necklaces\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Recently, the SSEF received three pearl necklaces for testing. Each necklace had a clasp containing diamonds and what appeared to be a sapphire. The pearls were graduated in size, with a small knot\nse<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47747 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-spinel\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/fissure-filling-in-spinel\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Fissure-filling-in-spinel-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/fissure-filling-in-spinel\/\">\n\t\tFissure filling in spinel\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">The practice of filling fissures with a colourless substance, such as oil, wax or artificial resin, has been common in the gemstone trade for many decades, if not centuries.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47912 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-geochemistry\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/bachelor-thesis-on-heated-blue-zircon-from-different-origins\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Bachelor-thesis-on-heated-blue-zircon-from-different-origins-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/bachelor-thesis-on-heated-blue-zircon-from-different-origins\/\">\n\t\tBachelor thesis on heated blue zircon from different origins\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Zircon (ZrSiO4) is a common accessory mineral found in rocks, as well as an inclusion in gemstones, primarily corundum. Zircon is also known as a gemstone in its own right, either colourles<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-48014 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-geochemistry tag-methods\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/spectrofluorometer-new-instrument-at-ssef\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Spectrofluorometer-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/spectrofluorometer-new-instrument-at-ssef\/\">\n\t\tSpectrofluorometer: New instrument at SSEF\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">We have acquired a new instrument at SSEF: a JASCO FP-8550 spectrofluorometer. A spectrofluorometer is a device that can measure fluorescence excitation and emission spectra.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47646 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-origins\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/ssef-gemtrack-documenting-the-journey-of-a-gemstone\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/SSEF-GemTrack-the-journey-of-a-gemstone-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/ssef-gemtrack-documenting-the-journey-of-a-gemstone\/\">\n\t\tSSEF GemTrack: Documenting the journey of a gemstone\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Launched in 2019, the SSEF GemTrackTM service is asked by more of our clients every year. This tracking service not only documents the journey of a gemstone in time, but is also an attracti<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47834 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-tourmaline\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/an-uncommon-artificial-resin-feature-in-a-brazilian-paraiba-tourmaline\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/An-uncommon-artificial-resin-feature-in-a-brazilian-Paraiba-tourmaline-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/an-uncommon-artificial-resin-feature-in-a-brazilian-paraiba-tourmaline\/\">\n\t\tAn uncommon artificial resin feature in a brazilian Paraiba tourmaline\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Recently, we examined a vibrant Brazilian Paraiba tourmaline weighing approximately 6 carats. One particular internal feature stood out that we found interesting for sharing.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47801 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-diamond\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/cvd-synthetic-diamond-with-colour-shift\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/CVD-synthetic-diamond-with-colour-shift-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/cvd-synthetic-diamond-with-colour-shift\/\">\n\t\tCVD synthetic diamond with colour shift\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Last November, the SSEF received an interesting round brilliant colourless (with a greyish tint) diamond of ca. 0.7 ct. mounted on an earring for testing.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47458 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-emerald\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/emeralds-from-the-minas-canaa-minas-gerais-brazil\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Emeralds-from-the-Minas-Canaa-Minas-Gerais-Brazil-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/emeralds-from-the-minas-canaa-minas-gerais-brazil\/\">\n\t\tEmeralds from the Minas Cana\u00e3, Minas Gerais, Brazil\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">In September 2024, the SSEF had the privilege of testing a few emeralds from the Mina Cana\u00e3, some of which exhibited exceptional qualities. Impressive in terms of weight, clarity and colour, these st<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47960 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-pearl\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/cultured-south-sea-pearls-with-small-beads\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Cultured-South-Sea-pearls-with-small-beads-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/cultured-south-sea-pearls-with-small-beads\/\">\n\t\tCultured South Sea pearls with small beads\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Identifying beaded cultured pearls is usually quite straightforward, as such pearls often contain a large bead made from a freshwater shell with a nacre layer only 1.5 mm or less thick.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-48062 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-diamond tag-jade tag-othergemstones tag-tourmaline\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/fake-it-til-you-break-it-oddities-and-fraud-cases-submitted-to-ssef\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Oddities-and-fraud-cases-submitted-to-SSEF-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/fake-it-til-you-break-it-oddities-and-fraud-cases-submitted-to-ssef\/\">\n\t\tFake it \u2018til you break it: Oddities and fraud cases submitted to SSEF\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Apart from beautiful and exceptional gemstones, the SSEF also gets from time-to-time submissions which clearly fall far from that prestigious range.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47978 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-agedating tag-jade\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/age-dating-of-burmese-jadeite\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Age-dating-of-burmese-jadeite-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/age-dating-of-burmese-jadeite\/\">\n\t\tAge dating of burmese jadeite\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Recently, the SSEF received a strand of Burmese jadeite jade beads for testing. The beads were slightly graduated with a diameter ranging from 8 to 11 mm and exhibited a beautifully saturated and\nhomo<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47717 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-tourmaline\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/purple-substance-in-hollow-tubes-to-mimic-unheated-paraiba-tourmaline\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Purple-substance-in-hollow-tubes-to-mimic-unheated-Paraiba-tourmaline-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/purple-substance-in-hollow-tubes-to-mimic-unheated-paraiba-tourmaline\/\">\n\t\tPurple substance in hollow tubes to mimic unheated Paraiba tourmaline\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Recently, the SSEF received a 14-carat, light blue, copper-bearing tourmaline for testing. Based on trace element concentrations, its Mozambique origin was readily established.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-48044 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-diamond tag-methods\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/phosphorescence-spectrometry-of-diamonds\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Phosphorescence-spectrometry-of-diamonds-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/phosphorescence-spectrometry-of-diamonds\/\">\n\t\tPhosphorescence spectrometry of diamonds\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">The JASCO FP-8550 spectrofluorometer. The instrument has a variety of applications. Here, we report on the phosphorescence lifetime study of a 0.705 ct, round, brilliant-cut, colourless (H\/VS1),\nnatur<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47888 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-sapphire\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/study-on-sapphires-with-exotic-elements-and-implications-for-heat-treatment-detection\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Study-on-sapphires-with-22exotic22-elements-and-implications-for-heat-treatment-detection-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/study-on-sapphires-with-exotic-elements-and-implications-for-heat-treatment-detection\/\">\n\t\tStudy on sapphires with &#8222;exotic&#8220; elements and implications for heat treatment detection\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">In a recent study, we analysed a series of unheated gem-quality sapphires containing \u2018exotic\u2019 elements such as Sn, Nb, Zr, Ta, W, also known as high-field-strength elements.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n<article class=\"qodef-e qodef-blog-item qodef-grid-item qodef-item--custom post-47996 post type-post status-publish format-standard has-post-thumbnail hentry category-research-blog tag-agedating\">\n\t<div class=\"qodef-e-inner\">\n\t\t<div class=\"qodef-e-content-holder\">\n\t\t\t<div class=\"qodef-e-media-image\">\n\t\t<a itemprop=\"url\" href=\"https:\/\/www.ssef.ch\/de\/age-dating-quality-control\/\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2026\/03\/Age-dating-quality-control-600x400.jpg\" alt=\"\" width=\"600\" height=\"400\" data-ratio=\"1.5\" \/>\t\t<\/a>\n\t<\/div>\n\t\t<div class=\"qodef-e-content\">\n\t\t\t<div class=\"qodef-e-top-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t<a itemprop=\"dateCreated\" href=\"https:\/\/www.ssef.ch\/de\/2026\/04\/\" class=\"\">\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"16\" height=\"14\" viewBox=\"0 0 16 14\">\n\t\t<g>\n\t\t\t<rect width=\"16\" height=\"14\"\/>\n\t\t\t<rect x=\"0.5\" y=\"0.5\" width=\"15\" height=\"13\"\/>\n\t\t<\/g>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(3 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(7 8)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 4)\"\/>\n\t\t<rect width=\"2\" height=\"2\" transform=\"translate(11 8)\"\/>\n\t<\/svg>\n\t2026<\/a>\n<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-text\">\n\t\t\t\t<h4 itemprop=\"name\" class=\"qodef-e-title entry-title\" >\n\t<a itemprop=\"url\" class=\"qodef-e-title-link\" href=\"https:\/\/www.ssef.ch\/de\/age-dating-quality-control\/\">\n\t\tAge dating quality control\t<\/a>\n<\/h4>\n\t\t<p itemprop=\"description\" class=\"qodef-e-excerpt\">Knowing the age of a gemstone can be valuable when determining its origins. Unfortunately, most gemstones cannot be dated directly. However, it is possible to determine the age of certain inclusions c<\/p>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"qodef-e-bottom-holder\">\n\t\t\t\t<div class=\"qodef-e-info\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.ssef.ch\/de\/category\/research-blog\/\" rel=\"tag\">Research Blog<\/a>\t<div class=\"qodef-info-separator-end\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/article>\n\t<\/div>\n\t\t<div class=\"qodef-m-pagination qodef--infinite-scroll\">\n\t\t<svg class=\"qodef-m-pagination-spinner\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"512\" height=\"512\" viewBox=\"0 0 512 512\"><path d=\"M304 48c0 26.51-21.49 48-48 48s-48-21.49-48-48 21.49-48 48-48 48 21.49 48 48zm-48 368c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48-21.49-48-48-48zm208-208c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48-21.49-48-48-48zM96 256c0-26.51-21.49-48-48-48S0 229.49 0 256s21.49 48 48 48 48-21.49 48-48zm12.922 99.078c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48c0-26.509-21.491-48-48-48zm294.156 0c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48c0-26.509-21.49-48-48-48zM108.922 60.922c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48-21.491-48-48-48z\"><\/path><\/svg>\t<\/div>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Want to learn more about our history and research vision at SSEF? Click here Erkunden Sieunsere Research Library Search for articles Categories Research BlogResearch ArticlesPresentations Facette magazine No posts were found for provided query parameters.<\/p>\n","protected":false},"author":10,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-width.php","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-32467","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Forschung - SSEF<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ssef.ch\/research-library\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Forschung - SSEF\" \/>\n<meta property=\"og:description\" content=\"Want to learn more about our history and research vision at SSEF? 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