The auctioneer says it will put the 'Aurora Green,' the world’s largest green diamond, on the block in Hong Kong at a May 31 sale. The rare radiant-cut 5.03-carat fancy vivid green diamond has VS2 clarity and no fluorescence and is likely to be the highlight of Christie’s Magnificent Jewels auction. Some media reports have cited sources as saying it has been valued at $16 million to $20 million, or $3.2 million to $4 million per carat. Given the popularity of the color green in Asia, it is likely the winning bidder will be an Asian collector or investor.

The rarity of green diamonds is seen in the fact that they seldom are offered at auction as compared to other colors such as yellow and pink. In the past 13 years, just one fancy vivid green stone has been sold – a 2.54-carat VS1 diamond at a Sotheby’s Magnificent Jewels auction in November 2009 – bought for $3.1 million, or $1.22 million per carat.

Source: The Diamond Loupe

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