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Things go pear-shaped in a good way as SA diamond is set to fetch R500m

And a portion of the proceeds will be used to bring water to people in conflict zones

The 'Red Cross' and 'The Rock' diamonds are pictured during a preview at Christie's before their auction in Geneva, Switzerland.
The 'Red Cross' and 'The Rock' diamonds are pictured during a preview at Christie's before their auction in Geneva, Switzerland. (Denis Balibouse/Reuters)

The largest white diamond ever auctioned will go under the hammer in Geneva next week, part of a sale by Christie’s that features two stones weighing more than 200 carats each.

“The Rock”, a 228.31 carat pear-shaped stone roughly the size of a golf ball, is expected to sell for up to $30m (about R482m), the auctioneer said.

Mined in SA, “The Rock” was worn by its former owner as a Cartier necklace. The previous auction record for a white diamond was a 163.41 carat gem sold in 2017.

“Often with these largest stones, they sacrifice some of the shape to keep the weight,” said Max Fawcett, head of Christie’s jewellery department in Geneva.

This is a perfectly symmetrical pear-shape form and ... one of the rarest gems ever to be sold at auction.

—  Max Fawcett, head of Christie’s jewellery department

“This is a perfectly symmetrical pear-shape form and ... one of the rarest gems ever to be sold at auction.”

Diamond prices have been buoyed by sanctions on major producer Russia and the return of VIP events as pandemic restrictions unwind.

Christie’s is also selling a 205.07 carat yellow, cushion-shaped stoned named “The Red Cross Diamond” since an unspecified portion of the auction proceeds will go to the Geneva-based International Committee of the Red Cross (ICRC).

The gem, which has Maltese cross faceted at its base, was first sold by Christie's in 1918 at a London auction where residents sold precious household items to help the war effort. Those proceeds, now $12,350 (about R200,000), helped the British Red Cross Society. Its estimated selling price today is between $7m (about R112m) and $10m (about R160m), Fawcett said.

An ICRC spokesperson said this time a portion of the proceeds from the sale would go to bringing clean water to people affected by conflict.

— Reuters

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