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Zoisite (variety: Tanzanite)

This beautiful tanzanite gemstone is set in an award-winning platinum and diamond ring designed by Mark Schneider. In 1967, violet-blue crystals of the mineral zoisite were discovered in Tanzania. Tiffany & Co. marketed the new zoisite gems under the name Tanzanite, and since its discovery, the gem has steadily increased in popularity and value. This fancy-cut triangular tanzanite gem exhibits the prized deep sapphire-blue color with highlights of intense violet. This extraordinary ring is the first piece of tanzanite jewelry accessioned into the National Gem Collection.

Image Number: Chip Clark
Catalog Number: G10184
Weight: 12.11 carats
Gift of Mark and Nancy Schneider, Schneider Design Studio , 2001


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Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits