JewelryWhole.com contains a lot of listings about jewelry supplies, earrings, bracelets, gemstones, charms, watches, fine art, unique designs, personalized jewelry, guides & directories.
Academy for Mineralogy
The Academy for Mineralogy, was founded in 1969 and has as purpose to gather enthusiasts of minerals, fossils and gemstones.
http://www.acam.be
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C.OR.ART
Assist firms participating in trade fairs at Vicenza, Arezzo, Basel, Hong Kong, Orlando, Las Vegas more.
http://www.corart.com/
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Gold Institute
The Gold Institute is an international trade association of companies that mine and refine gold, manufacturers of gold products and the world's leading bullion banks and gold dealers.