A group of gemological experts from around the world are putting their heads together to establish international technical standards for diamond grading. The Accredited Gemologists Association (AGA) launched this initiative during a meeting held in late May at the Platinum Hotel and Spa in Las Vegas, during the JCK show. Meeting attendees included laboratory leaders such as Don Palmieri from the Gem Certification and Assurance Laboratory (GCAL), Peter Yantzer from the American Gem Society, Lore Kiefert from the American Gem Trade Association...

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