{"id":13693,"date":"2022-02-02T18:07:18","date_gmt":"2022-02-02T12:37:18","guid":{"rendered":"https:\/\/gjepc.org\/solitaire\/?p=13693"},"modified":"2022-02-02T18:07:22","modified_gmt":"2022-02-02T12:37:22","slug":"gia-examines-world-record-16-41-ct-cvd-lab-grown-diamond","status":"publish","type":"post","link":"https:\/\/gjepc.org\/solitaire\/gia-examines-world-record-16-41-ct-cvd-lab-grown-diamond\/","title":{"rendered":"GIA Examines World-Record 16.41-ct CVD Lab-Grown Diamond"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Scientists at the Gemological Institute of America (GIA) recently examined the largest known laboratory-grown diamond produced by the chemical vapor deposition (CVD) method. The examination determined that the 16.41-carat princess cut diamond from the Shanghai Zhengshi Technology Co. Ltd. had the observable characteristics of a diamond produced by the CVD method. Detailed spectroscopic readings confirmed there was no post-growth treatment to improve the colour of the G colour, VVS<sub>2<\/sub> clarity man-made diamond.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cThe first CVD diamond I examined in 2003 was a 0.23-ct pear shape, with clear brown colour,\u201d said Dr. Wuyi Wang, GIA Vice President of Research and Development, who examined the new record-sized CVD diamond. \u201cThis 16.41-ct laboratory-grown diamond demonstrates the advances in CVD growth technology. This achievement has important implications for the many scientific and industrial applications for high-quality laboratory-grown diamonds.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cGIA has examined thousands of laboratory-grown diamonds since the first gemmological description of them by Robert Crowningshield in 1971,\u201d said Tom Moses, GIA executive vice president and chief laboratory and research officer. \u201cIn the decades since, we have shared the results of our detailed research; this is an important aspect of our consumer protection mission.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After examination by GIA scientists, GIA experts graded the diamond using the Institute\u2019s standard rigorous process for laboratory-grown diamonds, issuing GIA Laboratory-Grown Diamond Report number 2225246686.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A brief report authored by Wang and GIA research associates Stephanie Persaud and Elina Myagkaya is available on the Institute\u2019s website, <a href=\"https:\/\/secure-web.cisco.com\/1UQp2tTx4llhPROWXykqL7HYNGtN2xvTZcCENsEJR058-Do4Rtnkq1amrFRlJuCRgxC3J1rlqUKnVvknRkhi-K5ipc23XNNYL_up0-rgN9on0VnZ6JCzzOxuYSA4G2Vv18gkj4msJRopSJohO3gnJ3guiKxtdspZdunOvgbMmJKSxEiANc5sRmq5zJj4A_yz7C5psU7vzZfVWsdywAFdnrY9Gfh0WajPT64KgFXml5jOJqjJRi6v9s4ERqznKE9D5J57LL42Oa5UBiQx_QlXxflCelW6BwkB83HDoaxA4NrG02c0bynjyWT9qkN77c3svlYOGwI2YsOJlVl23tFAnM410d1Zkj6MgPp1gu4RG00TEed8-NNmISQEMafS6SJNonG8v8iy1tBMrZj6idX28kg\/https%3A%2F%2Fwww.gia.edu%2Fgia-news-research%2Fjanuary-2022-largest-cvd\" target=\"_blank\" rel=\"noreferrer noopener\">GIA.edu<\/a>. It will be published in a subsequent edition of GIA\u2019s quarterly journal, <em>Gems &amp; Gemology<\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scientists at the Gemological Institute of America (GIA) recently examined the largest known laboratory-grown diamond produced by the chemical vapor deposition (CVD) method. The examination determined that the 16.41-carat princess cut diamond from the Shanghai Zhengshi Technology Co. Ltd. had the observable characteristics of a diamond produced by the CVD method. Detailed spectroscopic readings confirmed&hellip;<\/p>\n","protected":false},"author":1,"featured_media":13706,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[83],"tags":[],"thb-sponsors":[],"class_list":["post-13693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bulletin"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>GIA Examines World-Record 16.41-ct CVD Lab-Grown Diamond - Solitaire magazine is a International jewellery magazine - India\u2019s leading B2B gem and jewellery magazine<\/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:\/\/gjepc.org\/solitaire\/gia-examines-world-record-16-41-ct-cvd-lab-grown-diamond\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GIA Examines World-Record 16.41-ct CVD Lab-Grown Diamond - Solitaire magazine is a International jewellery magazine - India\u2019s leading B2B gem and jewellery magazine\" \/>\n<meta property=\"og:description\" content=\"Scientists at the Gemological Institute of America (GIA) recently examined the largest known laboratory-grown diamond produced by the chemical vapor deposition (CVD) method. The examination determined that the 16.41-carat princess cut diamond from the Shanghai Zhengshi Technology Co. Ltd. had the observable characteristics of a diamond produced by the CVD method. 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