{"id":19882,"date":"2025-08-12T19:03:35","date_gmt":"2025-08-12T19:03:35","guid":{"rendered":"https:\/\/www.borsheims.com\/blog\/?p=19882"},"modified":"2025-08-12T19:03:37","modified_gmt":"2025-08-12T19:03:37","slug":"what-is-diamond-fluorescence","status":"publish","type":"post","link":"https:\/\/www.borsheims.com\/blog\/what-is-diamond-fluorescence\/","title":{"rendered":"What Is Diamond Fluorescence? Is It Good or Bad?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-14px|auto||auto||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2>What Is Diamond Fluorescence?<\/h2>\n<p><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW153119735 BCX0\"><span class=\"NormalTextRun SCXW153119735 BCX0\">Fluorescence<\/span><span class=\"NormalTextRun SCXW153119735 BCX0\"> in <\/span><span class=\"NormalTextRun SCXW153119735 BCX0\">diamonds refers to the way a diamond reacts to ultraviolet (UV) light, a type of light invisible to the human eye but present in natural sunlight and many artificial light sources like black lights.<\/span><\/span><span class=\"EOP SCXW153119735 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span class=\"EOP SCXW153119735 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\"><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW59415793 BCX0\"><span class=\"NormalTextRun SCXW59415793 BCX0\">Specifically, when a diamond with fluorescence is exposed to UV light, it emits a visible glow<\/span><span class=\"NormalTextRun SCXW59415793 BCX0\">\u2014<\/span><span class=\"NormalTextRun SCXW59415793 BCX0\">usually<\/span><span class=\"NormalTextRun SCXW59415793 BCX0\"> <\/span><span class=\"NormalTextRun SCXW59415793 BCX0\">a soft blue, but sometimes other colors like yellow, green or orange. This glow is caused by certain trace elements within the diamond\u2019s crystal structure that absorb the UV light and re-emit it at a different wavelength.<\/span><\/span><span class=\"EOP SCXW59415793 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/span><\/p>\n<p><span data-contrast=\"auto\">The intensity of fluorescence varies widely among diamonds. Some diamonds show:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">None (no fluorescence visible under UV light),<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Faint (very weak glow),<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Medium (noticeable glow),<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Strong or even<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Very Strong fluorescence.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-32px|auto||auto||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2>What Is the Most Common Fluorescence Color in a Diamond?<\/h2>\n<p><span data-contrast=\"auto\">Blue fluorescence is by far the most common, but diamonds can fluoresce in a range of colors, including:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Blue: Most common and usually considered attractive.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Yellow: Less common, can sometimes affect color perception.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Green, Orange, White: Rare and can produce unique effects.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">Each fluorescence color results from different impurities or structural anomalies inside the diamond.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW154150301 BCX0\"><span class=\"NormalTextRun SCXW154150301 BCX0\" data-ccp-parastyle=\"heading 3\">Does Fluorescence Affect a Diamond\u2019s Appearance?<\/span><\/span><span class=\"EOP SCXW154150301 BCX0\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">\u00a0<\/span><\/h2>\n<p><span class=\"EOP SCXW154150301 BCX0\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\"><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW201791234 BCX0\"><span class=\"NormalTextRun SCXW201791234 BCX0\">This is one of the most debated aspects of fluorescence in diamonds. The effect of fluorescence on a diamond\u2019s look depends on:<\/span><\/span><span class=\"EOP SCXW201791234 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/span><\/p>\n<p><span class=\"EOP SCXW154150301 BCX0\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\"><span class=\"EOP SCXW201791234 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\"><\/span><\/span><\/p>\n<h3><span data-contrast=\"auto\">1. Fluorescence Intensity<\/span><\/h3>\n<p><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:281,&quot;335559739&quot;:281}\"><\/span><\/p>\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">None to Faint: Typically no visible effect on appearance in normal lighting.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Medium to Strong: Can sometimes cause a diamond to appear hazy, oily or milky under daylight.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"3\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Strong to Very Strong: Some diamonds might look cloudy or less transparent.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"3\"><span data-contrast=\"auto\">2. Diamond Color Grade<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:281,&quot;335559739&quot;:281}\">\u00a0<\/span><\/h3>\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">In colorless diamonds (grades D-F), strong fluorescence can sometimes cause a slight haziness.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">In near-colorless or lower color grades (G-J and below), blue fluorescence can actually make the diamond appear whiter or brighter, masking some yellowish hues.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3>3. <span data-contrast=\"auto\">Lighting Conditions<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:281,&quot;335559739&quot;:281}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Fluorescence is only visible under UV light or sunlight containing UV rays. Indoors under typical incandescent or LED lighting, fluorescence generally won\u2019t be noticeable.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW131613130 BCX0\"><span class=\"NormalTextRun SCXW131613130 BCX0\" data-ccp-parastyle=\"heading 3\">How Common Is Fluorescence in Diamonds?<\/span><\/span><\/h2>\n<p><span data-contrast=\"auto\">Approximately 25% to 35% of natural diamonds display some degree of fluorescence. The majority of these exhibit blue fluorescence, especially those sourced from certain famous diamond mines, like those in Africa.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Because it is so common, fluorescence is not necessarily a defect or flaw but rather a natural characteristic.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-4px|auto||auto||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Do Lab-Grown Diamonds Have Fluorescence?<\/h2>\n<p><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW1639911 BCX0\"><span class=\"NormalTextRun SCXW1639911 BCX0\">Yes, lab-grown diamonds can <\/span><span class=\"NormalTextRun SCXW1639911 BCX0\">exhibit<\/span><span class=\"NormalTextRun SCXW1639911 BCX0\"> fluorescence<\/span><span class=\"NormalTextRun SCXW1639911 BCX0\">,<\/span><span class=\"NormalTextRun SCXW1639911 BCX0\"> just like natural diamonds.<\/span><span class=\"NormalTextRun SCXW1639911 BCX0\"> Learn about how lab-grown diamonds are created in this article. <\/span><\/span><span class=\"EOP SCXW1639911 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW207323208 BCX0\"><span class=\"NormalTextRun SCXW207323208 BCX0\" data-ccp-parastyle=\"heading 3\">How Does Fluorescence Affect Diamond Value?<\/span><\/span><span class=\"EOP SCXW207323208 BCX0\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">\u00a0<\/span><\/h2>\n<p><span class=\"EOP SCXW207323208 BCX0\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\"><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW52614200 BCX0\"><span class=\"NormalTextRun SCXW52614200 BCX0\">The impact of fluorescence on price varies among the market and individual buyers<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">. Diamonds with n<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">o or faint fluorescence<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> are typically <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">considered neutral and command <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">standard<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> market prices<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">.<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">Medium to strong fluorescence<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> c<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">an sometimes lead to <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">a<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> softening <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">of<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> prices by<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">5-15%, <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">particularly<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">\u00a0in high-color diamonds where <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">it may cause a slight <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">haziness.<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\"> However, i<\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">n some cases, fluorescence can <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">actually <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">increase value, especially in lower color diamonds like I, J or K, where blue fluorescence can improve the diamond\u2019s apparent whiteness and <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">overall <\/span><span class=\"NormalTextRun SCXW52614200 BCX0\">appeal.<\/span><\/span><span class=\"EOP SCXW52614200 BCX0\" data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/span><\/p>\n<p><span class=\"EOP SCXW207323208 BCX0\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\"><\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-15px|auto||auto||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Is Diamond Fluorescence Good or Bad?<\/h2>\n<p><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW237559653 BCX0\"><span class=\"NormalTextRun SCXW237559653 BCX0\">Whether fluorescence is a positive or negative trait <\/span><span class=\"NormalTextRun SCXW237559653 BCX0\">depends<\/span><span class=\"NormalTextRun SCXW237559653 BCX0\"> largely<\/span><span class=\"NormalTextRun SCXW237559653 BCX0\"> on personal preference, the diamond\u2019s color grade<\/span><span class=\"NormalTextRun SCXW237559653 BCX0\"> <\/span><span class=\"NormalTextRun SCXW237559653 BCX0\">and <\/span><span class=\"NormalTextRun SCXW237559653 BCX0\">the way <\/span><span class=\"NormalTextRun SCXW237559653 BCX0\">the fluorescence <\/span><span class=\"NormalTextRun SCXW237559653 BCX0\">influences its <\/span><span class=\"NormalTextRun SCXW237559653 BCX0\">overall appearance.<\/span><\/span><span class=\"EOP SCXW237559653 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><span class=\"EOP SCXW237559653 BCX0\" data-ccp-props=\"{}\"><\/span><\/p>\n<h3>Pros of Fluorescence<\/h3>\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"6\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">May improve color appearance in lower color grades.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"6\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Often available at a better price point than similar diamonds without fluorescence.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3>Cons of Fluorescence<\/h3>\n<ul>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Strong fluorescence can sometimes cause haziness or oily appearance.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">May be undesirable if you prefer diamonds that look perfect under all lighting conditions.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<li aria-setsize=\"-1\" data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Some simply prefer diamonds with no fluorescence due to traditional standards.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\"><\/span><\/li>\n<\/ul>\n<p><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\"><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun Highlight SCXW99482960 BCX0\"><span class=\"NormalTextRun SCXW99482960 BCX0\">So, should you avoid diamonds with fluorescence? <\/span><\/span><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun Highlight SCXW99482960 BCX0\"><span class=\"NormalTextRun SCXW99482960 BCX0\">Not necessarily.<\/span><\/span><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW99482960 BCX0\"><span class=\"NormalTextRun SCXW99482960 BCX0\"> <\/span><\/span><span class=\"EOP SCXW99482960 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-31px|auto||auto||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; custom_margin=&#8221;20px|||||&#8221; global_colors_info=&#8221;{}&#8221;]<p><span data-contrast=\"auto\">When buying a diamond, fluorescence will be noted on the diamond grading report from labs like GIA. The report will state the fluorescence intensity, typically ranging from None to Very Strong.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">If possible, view the diamond under various lighting conditions including natural daylight to see if fluorescence affects its appearance. <\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.borsheims.com\/blog\/wp-content\/uploads\/2025\/08\/1755008823627-74dfbd23-01c6-45ae-a92d-b973612237ae_1.jpg&#8221; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; alt=&#8221;Diamond Fluorescence on GIA Report &#8221; title_text=&#8221;1755008823627-74dfbd23-01c6-45ae-a92d-b973612237ae_1&#8243; align=&#8221;center&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; global_colors_info=&#8221;{}&#8221;]<p><span data-contrast=\"auto\" xml:lang=\"EN-US\" lang=\"EN-US\" class=\"TextRun SCXW180143647 BCX0\"><span class=\"NormalTextRun SCXW180143647 BCX0\">Whether you<\/span><span class=\"NormalTextRun SCXW180143647 BCX0\"> embrace <\/span><span class=\"NormalTextRun SCXW180143647 BCX0\">the colorful glow <\/span><span class=\"NormalTextRun SCXW180143647 BCX0\">or prefer a diamond without it<\/span><span class=\"NormalTextRun SCXW180143647 BCX0\">, fluorescence<\/span><span class=\"NormalTextRun SCXW180143647 BCX0\"> is simply one of many characteristics that make each stone one of a kind. <\/span><span class=\"NormalTextRun SCXW180143647 BCX0\">Explore more Diamond Education articles on our blog, The Loop.<\/span><\/span><span class=\"EOP SCXW180143647 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_button button_text=&#8221;Explore Diamond Education&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Read whether diamond fluorescence is a good or bad quality in a diamond.<\/p>\n","protected":false},"author":29,"featured_media":19888,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[574,25,23],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.9.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Is Diamond Fluorescence? 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