Platinum, 18 karat gold, fancy yellow diamond and diamond ring. Photo: Sotheby's. 

Set with a cut-cornered rectangular modified brilliant-cut Fancy Yellow diamond weighing 9.01 carats, flanked by two tapered baguette diamonds weighing approximately 1.00 carat and numerous round diamonds of pink. yellow and near colorless hues weighing approximately 1.45 carats, size 5¾. Estimation 125,000 — 175,000 USD 

Accompanied by GIA report no. 13811155 stating that the diamond is Fancy Yellow, Natural Color, Internally Flawless.

Sotheby's. Important Jewels. New York | 24 sept. 2013.  http://www.sothebys.com