A plum-sized diamond known as the Pink Star has fetched a record-breaking $83m (£51.7m) at auction.
Sotheby’s said it was a world record price for a gemstone. The flawless 59.60-carat pink diamond is the largest in its class ever graded by the Gemological Institute of America (GIA), with the second biggest less than half its size.
Set on a ring, it measures 2.69 by 2.06 centimetres and weighs 11.92 grammes. There was applause as Sotheby’s David Bennett brought down the hammer in the heavily-guarded Geneva salesroom.
Noting that its pre-sale estimate had been $61m (£38m), he told reporters: “It surpassed our estimate. It’s a large amount of money in itself but I don’t think this stone has a price.”