Sotheby’s will auction two flawless white diamonds weighing over 50 carats each, estimated at a combined price of more than $15 million.
The first is a round brilliant-cut, 51.71-carat stone, estimated at $8.2 million to $9.5 million, while the second is an oval-shaped, 50.39-carat diamond, with an estimated price of $7.3 million to $8 million. Both stones are D color, flawless, type IIa and the largest of their shape to be sold at auction.
The stones will be previewed in London on April 6, and go on sale at Sotheby’s Magnificent Jewels and Noble Jewels auction in Geneva on May 15.
Sotheby’s also said it had sold a 102.34-carat white diamond — the only known round brilliant, flawless diamond over 100 carats — in a private sale. While the company did not reveal who bought it and for how much, it said the purchase price far exceeded any price per carat paid for a colorless diamond at auction. The current record for a white diamond is $260,252 per carat, it noted.
“Having witnessed the enormous effect of the 102.34-carat stone on those who saw it, we are now thrilled to bring to…market two more truly exceptional stones, both of which are among the largest, highest-quality white diamonds ever to come to auction,” said David Bennett, worldwide chairman of Sotheby’s international jewelry division. “Diamonds like these have always captivated collectors and connoisseurs alike, and continue to do so today.”