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The Gemological Institute of America, GIA, is the world

WikiAnswers: Questions and Answers from the Community

Online source for the latest business and financial news and analysis. Covering personal finance, lifestyle, technology and stock markets. Providing business analysis, advice, commentary, tools and investing tips from Forbes and affiliated publicatio...

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Jewelry Making - Informational site on jewelry and related fields, offers a substantial library of articles and technical data, mailing list, galleries and trade tools.

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The largest gemology study and reference site on the internet

An interactive reference guide to rocks, minerals, and gemstones.

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