One of the ‘purest, pinkest diamonds’ to go under the hammer

An “exceptionally rare” pink diamond, named the Williamson Pink Star to tie it to a similar gem owned by the Queen, is expected to sell for more than $21 million. la (£18m) this fall.

The 11.15-carat cushion-shaped stone is the second-largest internally flawless vivid pink diamond ever to appear at auction and could set a new price-per-carat record at auction, Sotheby’s said. .

It’s just ahead of the CTF Pink Star, which sold in 2017 for $71.2 million (£57.2 million), setting a world record for any diamond or jewelry, according to the report. auction house.


Model Nina Uhl wears a large, pure pink diamond on display at Sotheby’s, central London, before it goes up for auction this fall (Yui Mok/PA)

The Williamson Pink Star is named after its record-breaking predecessor, as was the Queen’s Williamson pink diamond – discovered at the same mine in Tanzania.

The 23.6-carat diamond was a wedding gift to the Queen in 1947 from Canadian geologist Dr John Thoburn Williamson, who owned the mine and became the focal point of the Cartier-designed brooch.

Sotheby’s head of jewelry Kristian Spofforth told the PA news agency: “The name is really cool because it’s a reference to one of the most famous pink diamonds in the world in the Cartier brooch that is in the Cartier brooch. Queen wears.

“It came from the same mine that this diamond came from the Williamson mine in Tanzania, so there is a lovely link there.

“We don’t know a lot of details about the Queen’s diamond as it is very private and was given to the Queen in 1947.


The last time a gem of this color, quality and size was introduced to the world was in 2017 and it became the most expensive gem ever sold at auction (Yui Mok/PA)

“Then you also have the link to the Pink Star that sold in 2017, setting a world record price for any gem or jewelry in the auction, and in fact both cut. by Diacore bring this great link into it. into the name. “

Mr Spofforth described the stone as “one of the rarest natural beauties on earth”.

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“It is rare to find a diamond of this color and clarity,” he said. We have called it the purest, pinkest diamond you can get.

“Only 5% of diamonds are colored diamonds; Of the colored diamonds, only 3% are pink. You add in the fact that it’s over 10 carats, flawless inside, and you get the exceptional rarity that gives us this diamond.

“The seller was especially happy to put it up for auction because it was a natural beauty.”

He added that the diamond has been in “special hands” since it appeared in the rough a few years ago, adding that the transformation into a polished diamond takes “some time”.

The Gemological Institute of America (GIA) monograph says: “With its unique colour, remarkable size and brilliant cut, the Williamson Pink Star is both a work of nature and a work of art. claims its place among the most attractive colored diamonds. . “

Wenhao Yu, President of Jewelry and Watches at Sotheby’s Asia, said: “It is extremely rare to find a gem-quality pink diamond of any size. which, with the recent closure of the Argyle mine, seemed very unlikely until recently. .

“Driven by limited supply and soaring demand, the price of top quality large pink diamonds over 5 carats has increased exponentially over the past decade, incidentally setting the scene for the appearance of this one-of-a-kind stone.”

The diamond is expected to fetch more than $21 million in Sotheby’s auction on October 5 in Hong Kong. One of the ‘purest, pinkest diamonds’ to go under the hammer

Fry Electronics Team

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