IGI is the largest organization of its kind, with offices in Antwerp, New York, Hong Kong, Mumbai, Bangkok, Shenzhen, Dubai, Tel Aviv, Cavalese, Toronto, Los Angeles, Kolkata, New Delhi, Thrissur, Surat, Chennai, Ahmadabad, Cavalese, and Shanghai. The IGI School of Gemology operates from Antwerp, Dubai, Shanghai, as well as six schools in India and four in Italy, offering a variety of courses designed for professionals and consumer enthusiasts alike. A certificate from IGI represents the all-important 5th C that no one should be without: Confidence. As the world's largest independent gem certification and appraisal institute for diamonds, colored gemstones and jewelry, IGI is a standard of excellence for industry professionals and consumers around the globe.
| Website | http://www.igi.org |
| Revenue | $545.1 million |
| Employees | 508 (411 on RocketReach) |
| Founded | 1975 |
| Address | 551 5th Ave, New York, New York 10176, US |
| Phone | (323) 401-0888 |
| Fax | (323) 232-0758 |
| Technologies | |
| Industry | Retail Luxury Goods and Jewelry, Commercial Printing, Precious Metals and Minerals Mining, Business Services |
| Web Rank | 8 Million |
| Keywords | Gemological Laboratory, Diamond Certification, Diamond Grading Reports, Gemstone Identification, Gemstone Grading, Precious Stone Analysis, Gemstone Testing, Jewelry Appraisal, Jewelry Authentication, Diamond Assessment, Color Grading, High Jewelry, Fine Jewelry |
| Competitors | GIA (Gemological Institute of America), Rapaport, Solitaire Gem Labs, EGL USA Group, DCLA Diamond certification and education., HRD Antwerp İstanbul, GRS Gemresearch Swisslab AG, GCAL by Sarine +14 more (view full list) |
| SIC | SIC Code 275 Companies, SIC Code 27 Companies |
| NAICS | NAICS Code 44 Companies, NAICS Code 448 Companies, NAICS Code 4481 Companies |
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International Gemological Institute - IGI Questions
The International Gemological Institute - IGI annual revenue was $545.1 million in 2026.
411 people are employed at International Gemological Institute - IGI.
International Gemological Institute - IGI is based in New York, New York.
The NAICS codes for International Gemological Institute - IGI are [44, 448, 4481].
The SIC codes for International Gemological Institute - IGI are [275, 27].
Top International Gemological Institute - IGI Employees
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Alina Xiong
CHO at International Gemological Institute - IGI
Shanghai, China1 -
32
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2
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