GENEVA—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 $30 million, the auctioneer said.
“Often with these largest stones, they sacrifice some of the shape in order to keep the weight,” Max Fawcett, the head of Christie’s jewellery department in Geneva, told Reuters.
“This is a perfectly symmetrical pear-shape form and …one of the rarest gems ever to be sold at auction.”
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