Inside Tucson 2014
Explore the 2014 Tucson Gem show with GIA.
Inside Tucson 2013
Eighteen interviews with trade experts, from one of the world’s largest gem shows.
Learn More About Tanzanite
Explore tanzanite history, research, quality factors, and more in the GIA Gem Encyclopedia.
Richard T. Liddicoat Gemological Library
Search GIA's library catalog of 57,000 books, 1,800 videos, 700 periodicals, and the renowned Cartier Rare Book Repository and Archive.
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