RAPAPORT... Sotheby's will sell the largest vivid-purple-pink diamond ever to appear at auction, with expectations it could achieve up to $38 million at a November sale.The oval modified brilliant-cut, 14.83-carat, fancy-vivid-purple-pink, internally flawless, type IIa stone is set to go under the hammer at the Magnificent Jewels and Noble Jewels auction in Geneva on November 11, Sotheby's said Monday. The company has given the piece a presale estimate of $23 million to $38 million."Pink diamonds, perhaps more than any other colored diamond, have captured the imagination of collectors for centuries, making up five out of the 10 most valuable diamonds ever sold at auction," said Benoit Repellin, head of the auction house's Geneva Magnificent Jewels auction. "These exceptional sales, all realized in the last decade, are a testament to the growing appreciation and awareness of the great scarcity of these natural treasures around the world, and with the supply of these beautiful stones becoming ever more limited, they are likely to continue to become even more prized."Alrosa cut and polished the diamond from a 27.85-carat rough it unearthed at its Ebelyakh deposit in Yakutia in July 2017. The miner named the polished The Spirit of the Rose after the famous Russian ballet premiered by the Ballets Russes company in 1911, and called the rough Nijinsky, in honor of Vasalv Nijinsky, one of the ballet's principal dancers.The Spirit of the Rose is one of the three-stone Spectacle collection Alrosa has dedicated to Russian ballet. The set also includes the Firebird, an Asscher-cut, 20.69-carat, fancy-vivid-yellow, VS1-clarity diamond, which Alrosa sold to Graff for an undisclosed amount in December. The miner is still manufacturing the third stone. Alrosa had originally expected to sell The Spirit of the Rose in November 2019, it said last year.Sotheby's will exhibit The Spirit of the Rose in Hong Kong; Singapore; Taipei, Taiwan; and Geneva prior to the sale.Image: The Spirit of the Rose diamond. (Sotheby's)