Fancy Light Yellow Diamond and Diamond Necklace. Photo courtesy Tiancheng International Auctioneer Limited

The single strand necklace composed of seven cut-cornered rectangular modified brilliant-cut Fancy Light Yellow diamonds together weighing approximately 10.30 carats, each framed by circular-cut diamonds, spaced by a trio of collet-set brilliant-cut diamonds, completed by collet-set circular-cut diamond necklace. Diamonds together weighing approximately 9.70 carats. Mounted in 18 karat white gold and yellow gold. Length approximately 40.8cm. Estimate US$71,000 - 84,000 

Accompanied by GIA report numbered 5121065440 dated 30 April 2010, stating that the 3.25 carat diamond is natural, of Fancy Light Yellow colour, SI1 clarity and also six GIA reports stating that the diamonds ranging from 1.50 to 0.97 carats are natural, of Fancy Light Yellow colour, VS1 to SI1 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/