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Reference Values of Gems
Database updated: 26 September 2017
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Jewelry and gemstone appraisers

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Accredited Gem Appraisers

Gemological organizations and info resources

Gemological Institute of America
Accredited Gemologists Association
American Gem Trade Association
International Colored Gemstone Association
International Gem Society
Mineralogy Club of Antwerp
Hard Assets
Kitco

Gemstone traders

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Africa Gems
Gemfix
Lapigems
Paraiba International
Gemfrance
Crescent Gems
Rare Stone
Jewelry Television
Tanzanite.com
Gem Rock Auctions
Forever Gemstones
Rare and Unique Gemstones

Diamonds

Diamond Search Engine
Samara James
Fancy Diamonds

Opals

Opal Auctions

 

 
 
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