{"id":19744,"date":"2023-04-03T17:02:13","date_gmt":"2023-04-03T15:02:13","guid":{"rendered":"https:\/\/ssef.ch\/?p=19744"},"modified":"2023-09-19T17:03:32","modified_gmt":"2023-09-19T15:03:32","slug":"quest-ce-quun-diamant-de-couleur","status":"publish","type":"post","link":"https:\/\/www.ssef.ch\/fr\/quest-ce-quun-diamant-de-couleur\/","title":{"rendered":"Qu\u2019est-ce qu&rsquo;un diamant de couleur ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"19744\" class=\"elementor elementor-19744\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5de6727 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"5de6727\" 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-4cb3c62\" data-id=\"4cb3c62\" 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-329c1da elementor-widget elementor-widget-image\" data-id=\"329c1da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"417\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/diamant-de-couleur-jpeg.webp\" class=\"attachment-large size-large wp-image-26141\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/diamant-de-couleur-jpeg.webp 1000w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/diamant-de-couleur-300x125.webp 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/diamant-de-couleur-768x320.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\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-03f2370 elementor-widget elementor-widget-spacer\" data-id=\"03f2370\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab86f0d elementor-widget elementor-widget-text-editor\" data-id=\"ab86f0d\" 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\tUn diamant peut se pr\u00e9senter sous un grand nombre de couleurs : blanc, noir, bleu, rouge, vert, orange, rose ou brun pour n\u2019en citer que quelques-unes. Ces teintes se d\u00e9clinent sous de multiples combinaisons avec une saturation (intensit\u00e9 de la teinte) et un ton (variation de la teinte sur une gamme de gris) s\u2019\u00e9tendant sur un large spectre.\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-2903291 elementor-widget elementor-widget-image\" data-id=\"2903291\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"883\" height=\"765\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/fancy-coloured-diamond-jpeg.webp\" class=\"attachment-large size-large wp-image-26191\" alt=\"\" srcset=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/fancy-coloured-diamond-jpeg.webp 883w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/fancy-coloured-diamond-300x260.webp 300w, https:\/\/www.ssef.ch\/wp-content\/uploads\/2023\/06\/fancy-coloured-diamond-768x665.webp 768w\" sizes=\"(max-width: 883px) 100vw, 883px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Des diamants de diff\u00e9rentes couleurs. Photo: SSEF.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\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-7da3197 elementor-widget elementor-widget-spacer\" data-id=\"7da3197\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30298a8 elementor-widget elementor-widget-text-editor\" data-id=\"30298a8\" 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<h2>Taille de diamants de couleur<\/h2><p>G\u00e9n\u00e9ralement, les diamants ont davantage de valeur s\u2019ils sont absolument incolores. Ces diamants doivent leur beaut\u00e9 visuelle principalement \u00e0 leur grande brillance, \u00e0 leur couleur blanche pure et \u00e0 la forme bien d\u00e9finie et classique des reflets de leurs facettes rehauss\u00e9s de quelques \u00e9clats scintillants de couleur, ph\u00e9nom\u00e8ne chromatique d\u00fb \u00e0 la dispersion de la lumi\u00e8re blanche sur les couleurs spectrales dans le diamant. La taille brillant-ronde standard est un exemple classique de la fa\u00e7on de tailler ces diamants incolores.<\/p><p>Pour les diamants de couleur, la taille vise toujours \u00e0 cr\u00e9er la saturation la plus intense \u00e0 l&rsquo;\u0153il. Cette saturation intense est g\u00e9n\u00e9ralement obtenue gr\u00e2ce \u00e0 des styles de taille bien plus complexes avec un nombre \u00e9lev\u00e9 de facettes. Ces facettes essaient de pi\u00e9ger autant que possible la lumi\u00e8re dans la pierre \u00e0 travers de multiples reflets internes, la couleur observ\u00e9e \u00e9tant ainsi plus satur\u00e9e.<\/p>\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-cb6da1e elementor-widget elementor-widget-spacer\" data-id=\"cb6da1e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ebfed52 elementor-widget elementor-widget-text-editor\" data-id=\"ebfed52\" 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<h2>Gradation de couleur des diamants de couleur<\/h2><p>La gradation de couleur des diamants est un processus tr\u00e8s pr\u00e9cis car il convient de prendre en compte un ensemble de trois param\u00e8tres optiques pour obtenir en d\u00e9finitive une valeur colorim\u00e9trique : 1) la teinte (p. ex. rose, bleu, vert), 2) la saturation (de faible \u00e0 forte) et 3) le ton (de clair \u00e0 fonc\u00e9).<\/p><p>L\u2019interaction de ces param\u00e8tres pourra donner une couleur pure comme pour les diamants roses fantaisie ou des couleurs m\u00e9lang\u00e9es comme le \u00ab rose brun\u00e2tre \u00bb, le \u00ab rose orang\u00e9 \u00bb ou le \u00ab rose gris\u00e2tre \u00bb.<\/p><p>Pour ajouter encore un peu de complexit\u00e9 \u00e0 ce sujet, le motif des reflets pourra donner des diff\u00e9rences nettes en termes de saturation visible sur certaines parties d\u2019un diamant, rendant ainsi la gradation de couleur compliqu\u00e9e.<\/p><p>Le diamant de couleur est grad\u00e9 en observant la pierre \u00ab table en haut \u00bb alors que le diamant incolore est toujours grad\u00e9 en observant la pierre \u00ab table en bas \u00bb (ou sur l\u2019envers). D\u00e8s lors, les diamants de couleur sont \u00e9valu\u00e9s sur la base de la couleur majeure pr\u00e9sente lorsque le dessus de la pierre est observ\u00e9.<\/p><p>La couleur du diamant de couleur est grad\u00e9e sur la partie pr\u00e9sentant la saturation la plus \u00e9lev\u00e9e. Par ailleurs, le diamant incolore est grad\u00e9 par rapport \u00e0 la partie du diamant qui a le moins de reflets internes. Un gemmologue exp\u00e9riment\u00e9 va donc toujours basculer l\u00e9g\u00e8rement le diamant de couleur selon diff\u00e9rents angles afin de parfaitement appr\u00e9cier et \u00e9valuer sa couleur et sa saturation.<\/p><p>\u00c0 la diff\u00e9rence de la gradation de couleur des diamants incolores, il n\u2019existe actuellement aucune norme internationale bas\u00e9e sur des diamants \u00e9talons de couleur d\u00e9finie permettant de grader les diamants de couleur. \u00c0 l\u2019Institut suisse de gemmologie (SSEF), les diamants de couleur sont grad\u00e9s en application de normes internes bas\u00e9es sur un ensemble de diamants \u00e9talons de couleur r\u00e9parti entre les cat\u00e9gories suivantes (en prenant le rose comme exemple) :<\/p><ul><li>rose (faint colour)<\/li><li>rose (very light colour)<\/li><li>rose (light colour)<\/li><li>rose (fancy light colour)<\/li><li>rose (fancy colour)<\/li><li>rose (fancy intense colour)<\/li><\/ul>\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-631511b elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-backgound-letter-holder-no qodef-elementor-content-no\" data-id=\"631511b\" 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-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-a774583\" data-id=\"a774583\" 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-65338d4 elementor-widget elementor-widget-text-editor\" data-id=\"65338d4\" 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<h2>Vous voulez en savoir plus sur les diamants ?<\/h2>\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-148559a elementor-widget elementor-widget-image\" data-id=\"148559a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"900\" height=\"742\" src=\"https:\/\/www.ssef.ch\/wp-content\/uploads\/2022\/11\/DIAMOND-footer-jpeg.webp\" class=\"attachment-large size-large wp-image-16346\" alt=\"\" \/>\t\t\t\t\t\t\t\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-50 elementor-top-column elementor-element elementor-element-42e3006\" data-id=\"42e3006\" 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-ec9f297 elementor-widget elementor-widget-text-editor\" data-id=\"ec9f297\" 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>Inscrivez-vous \u00e0 notre cours en ligne gratuit : Introduction aux diamants<\/h4><p>Apprenez tout sur les diamants. Leur histoire fascinante, comment ils se forment, d&rsquo;o\u00f9 ils viennent. D\u00e9couvrez les diff\u00e9rentes origines des diamants et leurs traitements. Suivez ce cours comme une introduction au monde merveilleux des diamants.<\/p>\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-1f76e96 elementor-widget elementor-widget-laurits_core_button\" data-id=\"1f76e96\" 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:\/\/masterclass-fr.ssef.ch\/p\/diamants\" target=\"_blank\"  >\n\t<span class=\"qodef-m-text\">S&#039;inscrire gratuitement<\/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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Un diamant peut se pr\u00e9senter sous un grand nombre de couleurs : blanc, noir, bleu, rouge, vert, orange, rose ou brun pour n\u2019en citer que quelques-unes. Ces teintes se d\u00e9clinent sous de multiples combinaisons avec une saturation (intensit\u00e9 de la teinte) et un ton (variation de la teinte sur une gamme de gris) s\u2019\u00e9tendant sur [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":26076,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[684],"tags":[],"library_category":[],"library_author":[],"class_list":["post-19744","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recherches-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu\u2019est-ce qu&#039;un diamant de couleur ? - 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\/fr\/quest-ce-quun-diamant-de-couleur\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu\u2019est-ce qu&#039;un diamant de couleur ? - SSEF\" \/>\n<meta property=\"og:description\" content=\"Un diamant peut se pr\u00e9senter sous un grand nombre de couleurs : blanc, noir, bleu, rouge, vert, orange, rose ou brun pour n\u2019en citer que quelques-unes. 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