記者発表の検索結果

During routine color stability testing of sapphires, GIA experts observed an unusual gain of orange or yellow coloration to a padparadscha-like color or even to pure orange.

100 GIA researchers, leading academics, independent industry experts and GIA Governors and executives met in person and virtually at GIA’s global headquarters in Carlsbad, Calif., November 1-3 for the Institute’s 16th annual research meeting.

At their recent Board meeting at the Institute’s California headquarters, the GIA Board of Governors welcomed two new Governors, new Chair and Vice Chair of the Board, and said goodbye to four departing members.

Focus on supporting ambitious goals, developing education content

Forging a significant new collaboration

Resources, training available now

The largest in-person career fair in the gem and jewelry industry

GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.

GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.

GIA welcomes Johanna Levy as the Institute’s first vice president of environmental, social and governance (ESG) programs.

GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.

GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.