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Last week the De Beers Millennium Jewel 4, a 10.10-carat oval-shaped fancy vivid blue diamond, was auctioned by Sotheby’s at the Hong Kong sale of Magnificent Jewels and Jadeite. Sold for $31.8 million, the Millennium broke the record for the most expensive diamond ever sold in Asia.
CNN has compiled a list of 5 facts about the stone you may not have known.
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