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International Gemological Institute
Company type
Gemological institute (laboratory)
Founded
1975; 49 years ago (1975)
Headquarters
Antwerp
,
Belgium
Number of locations
New York City, Hong Kong, Mumbai, Bangkok, Dubai, Tel Aviv, Los Angeles, Kolkata, New Delhi, Surat, Chennai, Thrissur, Ahmedabad, Shanghai, Cavalese, Ahmedabad and Hyderabad
Parent
Blackstone Group
(2023–present)
Website
igi.org
International Gemological Institute (IGI) is a Belgian diamond, colored stone and jewelry certification organization. Established in 1975, it is the largest independent gemological laboratory worldwide.[1]
IGI is headquartered in Antwerp, Belgium, and has offices in New York City, Hong Kong, Mumbai, Bangkok, Tokyo, Dubai, Tel Aviv, Toronto, Los Angeles, Kolkata, New Delhi, Surat, Chennai, Thrissur, Ahmedabad, Shanghai, and Cavalese. It also runs Schools of Gemology in several locations around the globe.
On May 21, 2023, Blackstone Group announced their acquisition of IGI.[2]
^Roe, Rebecca (December 2007). "Spotlight on International Gemological Institute". Jewelers Inc.
^"Blackstone Acquires International Gemological Institute (IGI)". Blackstone. Retrieved 2023-09-14.
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