Fine Pair of Unmounted 5.96 and 5.86 carats D Colour, Flawless Type IIa Diamonds

Lot 1705. Fine Pair of Unmounted 5.96 and 5.86 carats D Colour, Flawless Type IIa Diamonds. Estimate 7,200,000 — 8,500,000 HKD. Photo: Sotheby's.

The two brilliant-cut diamonds weighing 5.96 and 5.86 carats respectively.

Accompanied by two GIA reports numbered 6211345975 and 2207850266, dated 17 March 2016 and 15 March 2016 respectively, stating that the 5.96 and 5.86 carat diamonds are both D Colour, Flawless, with Excellent Cut, Polish and Symmetry; further accompanied by two diamond type classification reports stating that the diamonds are determined to be Type IIa diamonds. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency.