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The fluorite mineral the stone is fashioned from is more valuable than diamonds in China

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This 0.71-carat diamond From the Argyle tender is GIA-graded as internally flawless fancy intense pink and classified by Rio Tinto as 5PR internally flawless....

An 8.01-carat fancy vivid blue diamond, dubbed “The Sky Blue Diamond” to emphasize its rare hue, sold for $17.1 million, or $2.1 million per carat

This 9.14-carat, fancy vivid pink diamond sold for $18.3 million to an unidentified Asian buyer at the Christie’s Magnificent Jewels sale in Geneva

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Apatite: the great unknown gemstone

This cabochon-cut blue apatite displays chatoyancy, or cat’s eye effect, which occurs in crystals of apatite with fibrous, needle-like inclusions.

“Velvet Beauty,” a stunning azurite specimen, Tucson Gem and Mineral Show 2007,

“Rhodochrosite,” Tucson Gem and Mineral Show 2007

A petrified pinecone from Argentina and petrified wood from Utah