Articles tagged under: IGI

Surat lab develops world’s biggest 30-carat lab-grown diamond

June 11, 2022
Surat lab develops world’s biggest 30-carat lab-grown diamond

Surat: The International Gemological Institute has certified a 30.18-carat lab-grown diamond developed by Carp Impex Lab of Surat as the world’s biggest lab-grown diamond. Hitherto, a 14-carat lab-grown diamond developed by the same laboratory in 2021 held the status of the world’s biggest lab-grown diamond. The biggest lab-grown diamond has been obtained by the chemical vapour deposition process, and it has H colour and VS2 clarity. The diamond took 28 days to be grown in the labor...Read More