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Blackstone acquires International Gemological Institute

Private equity funds managed by Blackstone have acquired International Gemological Institute (IGI), a specialist in the independent certification of diamonds, gemstones, and jewellery from Shanghai Yuyuan Tourist Mart, a subsidiary of Fosun, and Roland Lorie, a member of the company’s founding family.

Private equity funds managed by Blackstone have acquired International Gemological Institute (IGI), a specialist in the independent certification of diamonds, gemstones, and jewellery from Shanghai Yuyuan Tourist Mart, a subsidiary of Fosun, and Roland Lorie, a member of the company’s founding family.

Founded in 1975 in Antwerp, IGI has a global footprint of 29 laboratories and 18 schools of gemology across 10 countries, and is the world’s first gemological laboratory to hold ISO accreditation in both natural and lab-grown diamonds. 

Since 2005, IGI has pioneered the certification of lab-grown diamonds, paving the authentication and standardisation of a rapidly growing industry.

Deutsche Bank, Ernst & Young, Deloitte and Freshfields Bruckhaus Deringer acted as advisors to Yuyuan and Roland Lorie on the transaction. KPMG, Simpson Thacher & Bartlett and Cyril Amarchand Mangaldas acted as advisors to Blackstone.

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