RAREST 7 CT Natural Grandidierite ~ Collectors Gem

Item Information

Dimensions (mm) 12.31 x 12.32 x 8.88mm
Weight (carats) 7 carats
No Treatment

Grandidierite was first described in southern Madagascar in 1902. Grandidieriteis the world 2nd rarest gem. The mineral is extremely rare gem-quality material of facetable size was almost unheard of in the market before the summer of 2015. Grandidieriteis an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. The mineral was named in honor of French explorer Alfred Grandidier(1836–1912) who studied the natural history of Madagascar. Grandidieritefeatures a deep blue-green color that is often too opaque to facet. The hardness of the gem makes attractive fine jewelry, but cutters must be careful when shaping the stone to avoid fractures.Its color ranges from bluish green to greenish blue. Jewel experts typically cannot set a specific price for the gem, but they generally estimate about $20,000 a carat.


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$351 zilo
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$250 zilo
$200 dsdmd
$55 zilo
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$41 catherineshea
$31 catherineshea
$27 catherineshea
$21 catherineshea
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$5 nicolas667788
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$1 msky
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Pricing & Details

Bid Increment $1
Starting Bid $1
Auction ID 624830
Watchers 5 watching
Viewed 3,053 times
Starts 17th May 2019 3:25pm PDT
Ends 21st May 2019 3:21pm PDT

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