Fine fancy yellow diamond ring. Photo Sotheby's

Centered by a fancy yellow cut-cornered rectangular modified brilliant-cut diamond weighing 13.72 carats, the shoulders set with trapeze-shaped diamonds of yellow hue weighing approximately 1.50 carats, bordered by brilliant-cut stones of similar hue weighing approximately .75 carat, mounted in 18 karat gold, size 6¼. Estimate 150,000 — 250,000 - Lot Sold: 182,500 USD

Accompanied by GIA report no. 13796272 stating that the diamond is Fancy Yellow, Natural Color, VS1 Clarity

Sotheby's. Important Jewels. New York | 20 Sep 2012 - www.sothebys.com