Fancy Yellowish Green Diamond and Diamond Ring. Photo courtesy Tiancheng International Auctioneer Limited

Centring on a radiant-cut Fancy Yellowish Green diamond weighing 7.91 carats, flanked by two half-moon shaped diamonds together weighing approximately 2.50 carats. Mounted in platinum. Ring size: 6. Estimate US$620,000 - 750,000

Accompanied by HRD report numbered 12033832001 dated 06 December 2012, stating that the 7.91 carat diamond is natural, of Fancy Yellowish Green colour, VS2 clarity.

Tiancheng International Auctioneer Limited. SPRING AUCTION 2013 JEWELLERY AND JADEITE. 15 Jun · 3 pm. Hong Kong Headquarters 30/F Bank of China Tower 1 Garden Road, Central Hong Kong http://www.tianchengauction.com/