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2. American Gem Society - Wikipedia

   en.wikipedia.org/wiki/American_Gem_Society

   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 ...

3. Richard T. Liddicoat - Wikipedia

   en.wikipedia.org/wiki/Richard_T._Liddicoat

   In 1942, as Director of Education, Liddicoat developed an intensive one-week lab class that was launched at the American Gem Society (AGS) Conclaves in Philadelphia and Chicago. The class gave jewelers the opportunity to work with equipment in a classroom setting under the guidance of GIA instructors.

4. Richard W. Hughes - Wikipedia

   en.wikipedia.org/wiki/Richard_W._Hughes

   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]

5. Gemology - Wikipedia

   en.wikipedia.org/wiki/Gemology

   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.

6. Category:Gemological laboratories - Wikipedia

   en.wikipedia.org/wiki/Category:Gemological...

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

7. Strawn-Wagner Diamond - Wikipedia

   en.wikipedia.org/wiki/Strawn-wagner_diamond

   It was cut to 1.09 carats (220 mg) in 1997, and graded a "perfect" 0/0/0 by the American Gem Society (AGS) in 1998 and graded perfect by the Gemological Institute of America, making it the first diamond from Arkansas to receive such an AGS grading. The diamond is considered one-in-a-billion, according to Peter Yantzer, the AGS Laboratory ...

8. Category : Professional associations based in the United States

   en.wikipedia.org/wiki/Category:Professional...

   American Association for Laboratory Animal Science; American Association for Marriage and Family Therapy ... American Gem Society; American Guild of Organists ...

9. List of geoscience organizations - Wikipedia

   en.wikipedia.org/wiki/List_of_geoscience...

   American Gem Society (AGS), also known as American Gemological Society – American trade association; American Geosciences Institute (AGI) – Nonprofit scientific federation including around 50 geoscientific organizations founded in 1948; American Geophysical Union (AGU) – Nonprofit organization of geophysicists