The Most Expensive Gemstone in the World

Rare blue diamond breaks world record in HK sale

Yahoo! News
Mon Oct 8, 10:03 AM ET

“HONG KONG (Reuters) – One of the rarest gems in the world, a flawless blue diamond, has sold for US$7.98 million (3.91 million pounds) at a Sotheby’s auction in Hong Kong, making it the most expensive gemstone in the world, per carat, sold at auction.

After intense bidding, the 6.04 carat, internally flawless blue diamond fetched $HK61.9 million (3.91 million pounds), or US$1.32 million per carat. The price smashed a 20-year-old record held by the “Hancock Red” — a red diamond, which fetched US$926,000 per carat at the time, Sotheby’s said.”

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