GIA is the world’s most trusted name in diamond grading and gem identification. Each Show Service Laboratory provides the same GIA expertise and standards with convenient access at trade shows around ...

No matter where you are in the world, you can submit diamonds, colored stones and pearls directly to any GIA laboratory location and be assured of consistent quality and service. On-site services at ...

Our extensive field gemology program is the foundation of our colored stone research and identification and country-of-origin services,' said Tom Moses, GIA chief laboratory and research officer.“ ...

‘Our extensive field gemology program is the foundation of our colored stone research and identification and country-of-origin services,’ said Tom Moses, GIA chief laboratory and research officer.

manager of field gemmology in the GIA laboratory in Bangkok, Thailand. “We were also the first team of foreign gemmologists to visit the Ethiopian emerald mines after their discovery in 2016.” ...

This repository contains example integrations to GIA's Report Results API in a variety of languages. Prior to using these examples, please review the Developer Documentation. Please note that these ...

The Winter 2024 special edition of GIA’s Gems & Gemology (G&G) highlights the advanced gemmological testing currently ...

To unravel the mystery, he sent the gem to the Gemological Institute of America (GIA) laboratory in Bangkok. There, scientists conducted extensive tests and discovered that the mineral's compositi ...