A Pair of Unmounted Fancy Pink and Fancy Blue Diamond. Photo courtesy Tiancheng International

Natural fancy pink brilliant - cut diamond weighing 0.76 carat. The second set is a natural fancy blue brilliant - cut diamond weighing 0.77 carat. Estimate HK$1,400,000 - 1,800,000 US$179,500 - 230,800

Accompanied by GIA reports *2101472484 dated 17 Decemeber 2008 stating that the 0.76 carat diamond is fancy pink colour, I1 clarity; *16930006 dated 23 April 2008 stating that the 0.77 carat diamond is fancy blue colour, SI2 clarity.

Tiancheng International. Hong Kong Autumn Auction 2011. 28 Nov 2011 www.tianchengauction.com