AGTA GemFair

February 4, 2020

Tucson, AZ Tucson Convention Center, Galleria Lobby Booth 28 Training and lectures T.B.A. Click Here to find out more information about AGTA GemFair…

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Colored Stone Grading and Pricing – Tucson, AZ

February 4, 2020

Color grading is presented following the new World of Color nomenclature and based on the international standard of the Munsell system. In this course, participants…

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Emerald Treatments and Pricing – Tucson, AZ

February 4, 2020

Attendees will examine emeralds treated by various methods and learn the practical techniques used in the field to recognize them. The degree to which an…

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