Lot 1789. Important 17.34 carats Burmese Sapphire and Diamond Ring, Bulgari. Estimate 3,300,000 — 4,000,000 HKD. Photo Sotheby's.

Set with an oval sapphire weighing 17.34 carats, flanked by two half-moon-shaped diamonds, mounted in 18 karat white gold, mounting by Bulgari, numbered, Swiss and Italian assay marks. Ring size: 6¾

Accompanied by Gübelin and SSEF reports numbered 15027002 and 80084, dated 1 March 2015 and 7 May 2015 respectively, stating that the sapphire is natural, of Burmese (Myanmar) origin, with no indications of heating.

Sotheby's. Important Jewels and Jadeite, Hong Kong, 28 Nov 2016, 01:00 PM