​Sotheby’s has announced that they will be auctioning two 50ct brilliant cut diamonds in Geneva this May, estimated with a combined price of more than $15 million.

The first of the two stones is a round brilliant-cut 51.71-carat diamond, with an estimate of $8.2 million to $9.5 million. It ranks as the second largest D flawless brilliant-cut diamond to be sold at auction.

The second stone is an oval-shaped 50.39-carat diamond with an estimated price of $7.3 million to $8 million.

The two stones are set to be previewed in London on April 6 before they go on sale at Sotheby’s Magnificent Jewels and Noble Jewels auction in Geneva on May 15.

“Having witnessed the enormous effect of the 102.34-carat stone on those who saw it, we are now thrilled to bring market two more truly exceptional stones, both of which are among the largest, highest-quality white diamonds ever to come to auction. Diamonds like these have always captivated collectors and connoisseurs alike and continue to do so today,” said David Bennett, worldwide chairman of Sotheby’s international jewellery division.

Meanwhile the auction house has sold a rare 102.34 carat white diamond, described as a “masterpiece of nature”, to an unknown buyer.

One of the diamonds set for auction at Sotheby's
One of the diamonds set for auction at Sotheby's

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