11-ct. Fancy Pink Diamond Up for Auction at Sotheby’s Geneva

Sotheby’s Geneva will offer a 10.99-ct. pink diamond at its Magnificent & Noble Jewels sale on May 17. It is being offered for sale from a private collection and has not appeared on the market for more than 30 years. It has a pre-auction estimate of $9 to $16 million.The diamond features a classic emerald cut, normally associated with white diamonds. This type of cut is highly sought-after when