Fine Fancy vivid yellow diamond and diamond ring. Photo: Sotheby's.

Centring on a cushion-shaped fancy vivid yellow diamond weighing 17.66 carats, flanked on each side by a trapeze-shaped diamond together weighing approximately 1.90 carats, mounted in platinum and 18 karat yellow gold.Ring size: 5½. Estimation 6,000,000 - 8,000,000 HKD (628,786 - 773,890 EUR)

Accompanied by GIA report numbered 1142260176, dated 23 December 2011, stating that the 17.66 carat diamond is natural, Fancy Vivid Yellow colour, Internally Flawless clarity. 
Sotheby's. Magnificent Jewels and Jadeite. Hong Kong | 07 oct. 2013 -