GIA Gem Trade Laboratory
GIA Gem Trade Laboratory (GTL) Reports are regarded throughout the gem and jewellery industry worldwide as the hallmark of integrity, reliability, and consistency in gemmological services and research.
GTL has literally set the industry standard for diamond grading and gemmological identification. Today, the GIA Diamond Grading Report™ and GIA Diamond Dossier® serve as the international gem and jewellery industry's benchmark credentials.
When jewellery professionals turn to the GIA Gem Trade Laboratory and its staff of nearly 400, they place their trust in 50 years of GIA's impartial leadership, expertise, and customer service.
If you wish to have more information about the services of the GIA Gem Trade Laboratory in America, please click here: Gem Trade Laboratory.
