November 20th saw records broken when a whopping, 9.75 ct. fancy vivid blue pear-shape fetched $3.3 million a carat at the Sotheby’s New York auction, setting a new high-water per-carat price for any diamond.
That price tops by a full $1 million the per-carat record set just one year ago, when a 14.82 ct. fancy vivid orange scored $2.3 million a carat ($35.3 million total) at a Christie’s Geneva auction.
The stone’s final price—$32.6 million—also set a record for the most expensive blue diamond ever, topping the celebrated Wittelsbach-Graff, which fetched $24.3 million in 2008.
The price was achieved after a frenzied 20 minutes of bidding, with seven prospective buyers. The winner was a Hong Kong collector, who dubbed it the Zoe Diamond. Sotheby’s did not provide further details on why that name was chosen.