From loose gemstones to mineral specimens, expand your gemological education and explore your own gemstone journey.

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Artisan Collection of Brazil Jewelry

Brown Gemstones

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Gemstone Information
Smoky Quartz
Smoky Quartz Gemstone & Information
Gemopedia™

Smoky quartz is an earth-toned transparent quartz that comes in a variety of shades, including cognac. Smoky quartz gets its rich warm colors from color centers when aluminum replaces silica in the crystal lattice of the quartz after exposure to gamma rays. A popular ornamental stone, it is often carved into figurines and ornate statues, but makes quite a statement when faceted into stunning gemstones.

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Loose Brown Stones


Feel naturally beautiful with the help of JTV's collection of sparkling brown gemstones. For an understated look, use loose Bordeaux Garnet gemstones as accents on the white diamond ring you've been working on! If you are creating a bold look, find a large Spanish sphalerite gemstone for the centerpiece of your soiltaire ring.

You might also be interested in: Chalcedony Gemstones

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