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

Centring on a brilliant-cut fancy vivid yellow diamond weighing 5.13 carats, surrounded by oval and radiant-cut diamonds of various hues, mounted in 18 karat yellow gold. Ring size: 5½. Estimate  3,500,000 -- 4,000,000 HKD

Accompanied by GIA report numbered 5141341022, dated 22 March 2012, stating that the 5.13 carat diamond is natural, Fancy Vivid Yellow colour, VS1 clarity.

Sotheby's. Magnificent Jewels and Jadeite. Hong Kong | 07 Oct 2013- http://www.sothebys.com