A step-cut, 16.90-carat, D-color, internally flawless diamond ring with a pre-sale estimate of $1.6 million to $2.2 million will lead Bonhams’ fine jewelry sale in New York on September 19.
The type-IIa diamond, set with round, brilliant-cut diamond shoulders, “embodies rarity according to every criterion by which a diamond is measured: color, cut, clarity and transparency,” said Susan Abeles, US head of jewelry at Bonhams.
A second notable lot is a sapphire and diamond ring featuring an oval-shaped, 7.54-carat sapphire with a surround of round, brilliant-cut diamonds. Bonhams gave it a pre-sale estimate of $375,000 to $575,000.
Signed pieces to feature in the sale include jewelry by Harry Winston, Cartier, René Lalique and David Webb, the auctioneer added.