A pair of diamond earrings have sold at the record-breaking price of of $57.4 million at an auction in Geneva on Tuesday, but only one of them is the real breadwinner, fetching nearly three times as much as the other.
The diamonds - a blue diamond named Apollo and a pink diamond named Artemis - were bought by the same phone bidder from Asia and will remain a pair.
Apollo and Artemis differ in their respective prices.
The prior record was held by the Miroir de l'Amour earrings sold by Christie's previous year for $17.6 million.
At the hammer price, excluding fees, the Apollo Blue - the largest internally flawless Fancy Vivid Blue ever sold at auction - went for 37 million Swiss francs (37.5m United States dollars), Sotheby's said.
Apollo is a 14.54 carat vivid blue diamond, cut and polished into a pear shape. The total cost was US$42.1 million, including the "buyer's premium".
Both gems are exceptionally rare, with less than 0.1% of diamonds having any blue in them at all.
Each earring was auctioned as a single piece although the auction house Sotheby's presented them as a pair to be worn together. The previous record price for earrings was set by the "Miroir de l'Amour", two pear-shaped white diamond earrings that Christie's sold for $17.7 million in November.
Prior to the sale, Mr Bennett described the diamonds as "the most important pair of earrings ever offered at auction".
He added: "These exquisite coloured diamonds are enormously rare and each is a wonderful stone in its own right".