D colour stone sets new record at Sotheby’s auction in Hong Kong.

It seems the appetite for diamonds at auction is not waning, following the record-breaking sale of a round brilliant cut diamond at auction in Hong Kong.

The stone, weighing 28.86ct, went under the hammer for HKD$53.8 million (£4.5m) at Sotheby’s, setting a new record for price per carat at auction.


The D colour internally flawless stone was sold at the recent sale of Magnificent Jewels and Jadeite on April 8.

It accompanied by a GIA report from February this year which described the stone a 28.86ct diamond of "excellent cut, polish and symmetry". Its classification report states that the diamond is determined to be a Type IIa diamond, said to be the most chemically pure type of diamond, typically exhibiting exceptional optical transparency.

Other high selling lots at the auction included a pair of unmounted round brilliant diamonds totalling 20.36cts and a pair of diamond earrings set with two internally flawless 8ct round brilliant diamonds of D colour.

Sotheby’s last month announced that is is to sell a 75ct pear-shaped diamond at auction on April 17, dubbed the most valuable diamond ever to go up for sale at auction.

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