Tuesday, September 16, 2014

Blue Moon Diamond, the most perfect diamond in the world at Natural History Museum

The  Blue Moon Diamond, one of the world's biggest, most perfect blue diamonds, goes on display at the Natural History Museum of Los Angeles County on Saturday.

That's 12 carats of internally flawless gemstone.
The “Blue Moon Diamond,” was purchased in its uncut rough form for $25.6mn by diamond manufacturer Cora International in February this year, and will be on loan in the Los Angeles museum until January 2015.

The deep blue stone has been categorized as an extremely significant find because of its unique colour, clarity and size. It is internally flawless, with no inclusions.

The diamond, a saturated blue, is 12.03 carats in all, weighs 2.4 grams and is 0.61 inch at its greatest diameter. Still can’t picture it on the ring finger of your left hand? Here’s a rough comparison: Zales says a round brilliant-cut 1-carat diamond is 0.25 inch.
The gemstone is both new and extremely rare, according to the L.A. County museum.

It was cut from a 29.6-carat rough diamond into a cushion-cut shape. The Blue Moon was found in South Africa's storied Cullinan mine; the largest diamond ever recovered came from this mine, the 3,106-carat Cullinan diamond in 1905. It's on loan from diamond manufacturer and supplier Cora International.

The diamond will be on display at the Natural History Museum through Jan. 6 in a special Gem Vault exhibition. Check out the Blue Moon Diamond in the gallery above.

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