Lot 1706. Important 13.21 carats D Colour, VS1 Clarity Pear-shaped Type IIa Diamond Ring, Fabergé. Estimate 6,250,000 — 7,500,000 HKD (764,355 - 917,226 EUR). Photo: Sotheby's.

Set with a pear-shaped diamond weighing 13.21 carats, embellished with circular-cut diamonds, mounted in 18 karat white gold, signed FAB, numbered, British assay and maker's marks. Ring size: 5½ 

Accompanied by GIA report numbered 17426101, dated 2 March 2017, stating that the 13.21 carat diamond is D Colour, VS1 Clarity; further accompanied by diamond type classification report stating that the diamond is determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency. 

Sotheby's. Magnificent Jewels and Jadeite, Hong Kong, 04 Apr 2017, 02:30 PM