{"id":7881,"date":"2022-04-05T12:09:42","date_gmt":"2022-04-05T10:09:42","guid":{"rendered":"https:\/\/ssef.ch\/?p=7881"},"modified":"2022-11-02T15:12:23","modified_gmt":"2022-11-02T14:12:23","slug":"diamond-fraud-uncovered","status":"publish","type":"post","link":"https:\/\/www.ssef.ch\/de\/diamond-fraud-uncovered\/","title":{"rendered":"Diamond fraud uncovered"},"content":{"rendered":"\n

by Dr. M.S. Krzemnicki, first published in Facette 27<\/a> (June 2021)<\/p>\n\n\n\n

\"\"
Figure 1:<\/strong> The yellowish diamond on the right was fraudulently labeled as Top Wesselton (rare white+ or F after current CIBJO nomenclature). The diamond on the left is a CIBJO masterstone for an F colour (lowest possible F colour). Photo: SSEF. <\/figcaption><\/figure>\n\n\n\n

As in the past, the SSEF is regularly asked by the Swiss police authorities to act as a gemmological adviser in criminal cases. Usually, these are fraud cases, involving undeclared or mislabeled gemstones or their imitations.
In a recent case with about 20 stones submitted by the police, we not only found diamonds with incorrect grading labels (Figure 1) and undisclosed fissure-fillings (Figure 2), but also cubic zirconia that was fraudulently mislabeled as diamond and sealed in a plastic card.<\/p>\n\n\n\n

These examples unfortunately highlight the risk for consumers when buying diamonds without proper documentation by an internationally recognised laboratory. <\/p>\n\n\n\n

\"\"
Figure 2:<\/strong> Beautiful flash effect seen under microscope in this fissure-filled diamond, but not nice as it was not disclosed! Photo: SSEF. <\/figcaption><\/figure>\n\n\n\n
\"\"
Figure 3:<\/strong> Beware the seal: This is not a diamond but cubic zirconia! Photo: SSEF.<\/figcaption><\/figure>\n\n\n\n
\n\n\n\n

Want to learn more about diamonds?<\/h2>\n\n\n\n
\"\"<\/figure>
\n

Sign up for our free online course: Introduction to diamonds<\/a><\/p>\n\n\n\n

Sign up for free<\/a><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

As in the past, the SSEF is regularly asked by the Swiss police authorities to act as a gemmological adviser in criminal cases. Usually, these are fraud cases, involving undeclared or mislabeled gemstones or their imitations. In a recent case with about 20 stones submitted by the police, we not only found diamonds with incorrect grading labels<\/p>\n","protected":false},"author":9,"featured_media":8044,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[626],"tags":[725],"library_category":[],"library_author":[],"class_list":["post-7881","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-blog","tag-diamond"],"acf":[],"yoast_head":"\nDiamond fraud uncovered - 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\/diamond-fraud-uncovered\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Diamond fraud uncovered - SSEF\" \/>\n<meta property=\"og:description\" content=\"As in the past, the SSEF is regularly asked by the Swiss police authorities to act as a gemmological adviser in criminal cases. 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