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The American Gem Society (AGS) is a trade association of retail jewelers, independent appraisers, suppliers, and selective industry members, which was founded in 1934 by Robert M. Shipley. The Society is based in Las Vegas, Nevada , along with the affiliated American Gem Society Laboratories (AGSL) (founded in 1996) and the American Gem Society ...
He was the director of AIGS during the 1980s, and also served at the American Gem Trade Association’s gemological laboratories in California and New York from 2005 to 2008. In 1997 he authored Ruby & Sapphire, which is considered by many in the gem and jewelry industry to be the most authoritative treatise on the subject. [1]
Prior to taking over GIA in Bangkok, Scarratt was laboratory director of the American Gem Trade Association's (AGTA) Gem Testing Center (GTC) in New York, beginning in 1998. In a career spanning more than 30 years, Scarratt has also served as Director of Laboratory Services, Education, and Research for The Asian Institute of Gemological ...
The American Gem Trade Association added tanzanite as a December birthstone in 2002. [5] In 2016, the American Gem Trade Association and Jewelers of America added spinel as an additional birthstone for August. [6] Britain's National Association of Goldsmiths created its own standardized list of birthstones in 1937. [7]
Bridges briefly exhibited the stone in 2019 at the American Gem Trade Association show in Tucson. He named it the "Lion of Merelani" after the district in Tanzania where it was found. He then donated it to the Smithsonian’s National Gem & Mineral Collection in 2022 in honor of his father.
An 836-pound “cursed” emerald worth nearly $1 billion will be returned to Brazil after 15 years under lock and key in Los Angeles. The 180,000-carat Bahia Emerald was smuggled out of the South ...
The first US graduate of Gem-A's diploma course, in 1929, was Robert Shipley, who then established both the Gemological Institute of America and the American Gem Society. There are now several professional schools and associations of gemologists and certification programs around the world.
It is a member of the American Gem Trade Association. On September 27, 2007, an ammonite fossil 80 million years old and 60 cm (two ft) in diameter of ammonite made its debut at the American Museum of Natural History in New York. Neil Landman, curator, said that it became extinct 66 million years ago, at the time of the dinosaurs. Korite ...