Gemological Science International (GSI) has raised a red flag over a notable increase in undisclosed laboratory-grown brown, yellow, and pink diamonds infiltrating natural diamond jewellery and posing as natural diamonds.<\/p>\n
Debbie Azar, President, and Co-Founder of GSI, said, \u201cOver the past several months, our team has seen a rise in laboratory-grown coloured diamonds, primarily in brown, yellow, and pink, being mixed in with natural-coloured diamonds in jewellery. The challenge arises as most jewellery screening equipment in the market is designed to screen white near-colourless diamonds.\u201d<\/p>\n
GSI said its proprietary process and AI-enabled equipment enables it to detect undisclosed laboratory grown coloured diamonds.<\/p>\n
Many of the undisclosed laboratory-grown coloured diamonds detected by GSI were Type IIA\u00a0\u00a0 with a single nitrogen. All were mounted in jewellery and vary in size, ranging from melee and as large as 1 carat.<\/p>\n
In some instances, the undisclosed lab-grown coloured diamonds were intentionally cut to mimic natural diamonds. Severe fractures, pinpoint clouds, and polished-over \u201cnaturals\u201d were observed, including distinct brown grain lines. These features closely resemble those found in natural diamonds, potentially passing standard gemmological observation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Gemological Science International (GSI) has raised a red flag over a notable increase in undisclosed laboratory-grown brown, yellow, and pink diamonds infiltrating natural diamond jewellery and posing as natural diamonds. Debbie Azar, President, and Co-Founder of GSI, said, \u201cOver the past several months, our team has seen a rise in laboratory-grown coloured diamonds, primarily in…<\/p>\n","protected":false},"author":1,"featured_media":24812,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[83],"tags":[],"thb-sponsors":[],"class_list":["post-24811","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bulletin"],"acf":[],"yoast_head":"\n