International Gemmological Institute updates: news & description

International Gemmological Institute News and Activities

Presence

International Gemmological Institute provides diamond, gemstone, and jewelry testing services. It offers grading reports, education programs, and certification services for retailers, manufacturers, traders, and consumers in the luxury goods market.

International Gemmological Institute products and services overview:

Diamond grading
Gemstone grading
Jewelry certification
Laboratory testing
Education programs
Quality assurance

Revenue: ~$40 million

Employees: 900

Headquarters: Mumbai, India

International Gemmological Institute is owned by Blackstone Group.

Blackstone Group is one of the...

Blackstone Group is a company listed under the stock ticker BX (US).

Blackstone Group has a direct presence in 12 countries.

Blackstone Group has 76 subsidiaries including AGS Health, Alight and Alight India.

They are in:

Acquisition, funding and merger involving Blackstone Group.

Blackstone Group has announced the acquisition of Champions Group Holdings (posted on February 18 2026).
Blackstone Group has announced the acquisition of Champions Group Holdings (posted on February 18 2026).
Blackstone Group has announced the acquisition of Enverus (posted on August 7 2025).
Blackstone Group has acquired Citrin Cooperman (posted on January 9 2025).
Blackstone Group has announced the acquisition of Chartis Group (posted on August 20 2024).
Blackstone Group has acquired Hipgnosis Songs Fund (posted on July 31 2024).
See more news about Blackstone Group Hide news involving Blackstone Group

Executives

View the org chart displaying its 25 main executives

Most searched biographies at International Gemmological Institute

Popular executive movements at Blackstone Group

Franck Petitgas will join the company as Senior Managing Director and Vice Chairman, Europe in Jan. 2026 (posted on November 27 2025).
Nadeem Meghji who is Global Co-Head of Real Estate, will become Global Head of Real Estate (posted on November 21 2025).
Kathleen McCarthy, who is Global Co-Head of Real Estate will soon leave the company (posted on November 21 2025).

Create your alert
to follow the executive moves at International Gemmological Institute.