Rapaport News


Rough Markets



IGI Grades Record Black Lab-Grown Diamond

115.65-carat piece is largest synthetic stone of that color.
Oct 1, 2020 4:33 AM   By Rapaport News
Print 打印 Facebook Facebook Twitter Twitter 共享 Share

 The International Gemological Institute (IGI) recently graded a 116-carat, black synthetic diamond that ranks as the largest lab-grown diamond of its color.

The 115.65-carat, type IIb stone was produced by UK-based Meylor Global using High Pressure-High Temperature (HPHT), and was accompanied by a second black lab-grown diamond weighing 109.58 carats, IGI said Wednesday.

“The innovative approach in physical chemistry of diamond growth, combined with sophisticated technological methods and advanced high-pressure equipment, allowed us to obtain record-breaking extra-large diamond single crystals, having in mind the idea of getting the biggest possible diamond plate,” said Meylor CEO Yuliya Kusher.

Meylor grew the diamonds as part of its “World’s Largest Black Diamonds Project,” which it began at the beginning of the year. However, it intends to try for a larger one in the future. The larger stone holds the Guinness World Record for its category, IGI reported.

“The significant milestone of [over 100 carats] in diamond size was achieved by our company in a very short time, and the next even more promising target of [over 200 carats] is right now under deep scientific investigation,” Kusher added.

Image: The two black lab-grown diamonds. (International Gemological Institute)
Tags: Black Lab-Grown Diamond, High Pressure-High Temperature, HPHT, IGI, International Gemological Institute, Meylor Global, Rapaport News, World’s Largest Black Diamonds Project, Yuliya Kusher
Similar Articles
Rough diamondsIndia Allows Importers to Fix Errors on KP Certs
Oct 01, 2020
The Indian government has permitted rough-d...
De Beers Reduces Prices of Smaller Rough
Comments: (0)  Add comment Add Comment
Arrange Comments Last to First

电洽: 1-702-893-9400
Member License Agreement   RapNet Trading Rules & Code of Conduct    私隐政策  
twitter twitter
关于 Rapaport