Blackstone Set to Buy IGI for up to $550M: Report

US private-equity firm could sign deal with sellers this weekend, according to Indian media.

Webinar: Diamond Reports in a Digital World

Watch this week’s special session on the future of grading.

Former IGI Chief Jerry Ehrenwald Dies

Executive spent 28 years as president of North America division.

Watch Featuring over 17K Natural Diamonds Scores Guinness Record

International Gemological Institute (IGI) graded each stone in timepiece from Indian company Renani Jewels.

Grown Versus Mined: The Retail Battleground

The success of the synthetic and natural diamond markets depends largely on the narrative of the retail jeweler.

IGI Reports to Include Cut Grade for Fancies

Feature will measure light behavior, lab notes.

Marijan Dundek’s Popular ‘Diamonds’ Book Gets a Refresh

The newly updated edition takes readers on an in-depth journey through fancy colors, famous stones, and a case study of the 603-carat Lesotho Promise.

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