Sapphire and Diamond Pendent Necklace and Matching Earrings, by Picchiotti. Photo courtesy Tiancheng International Auctioneer Limited

The necklace to the front suspending nineteen cushion-shaped sapphire together weighing 80.71 carats, each supported by a diamond-set link and surmounted to a brilliant-cut diamond, jointed by diamond-set links and to the back completed by a necklace of similar design; and a pair of matching earrings en suite, each suspending a cushion-shaped sapphire weighing together 15.20 carats, to a brilliant-cut diamond surmount, jointed by a diamond-set link. Diamonds altogether weighing approximately 24.00 carats. Signed Picchiotti. Mounted in platinum and 18 karat white gold. Estimate US$490,000 - 560,000

The necklace accompanied by nineteen C. Dunaigre Switzerland reports numbered CDC 1202211 to 1202219, 1202221, 1202223 to 1202231 dated 03 March 2012, stating that the nineteen sapphires are natural, of Sri Lankan (Ceylon) origin, with no indication of heating. Also, accompanied by five GIA reports, stating that the 1.20 to 1.01 carat diamonds are natural, from G to F colour, VS1 to VS2 clarity. 
The pair of earrings accompanied by C. Dunaigre Switzerland reports numbered CDC 1202220 and CDC120222 both dated 03 March 2012, stating that the 8.33 and 6.87 carat sapphires are natural, of Sri Lankan (Ceylon) origin, with no indication of heating. Also, accompanied by GIA reports numbered 16291603 and 16291604 dated 04 October 2007 and 25 September 2007, stating that the 1.01 and 1.00 carat diamonds are G and F colour, VS2 and VS1 clarity respectively

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/