Lot 393. A 8.27 carats Burmese ruby and diamond ring. Estimate CHF 800,000 - CHF 1,200,000. Price realised CHF 5,487,500. © Christie's Images Ltd 2017

Set with a cushion-shaped ruby, weighing approximately 8.27 carats, to the marquise-cut diamond twin shoulders, ring size 4 ¾, mounted in platinum.

Accompanied by report no. 94184 dated 21July 2017 from the SSEF Swiss Gemmological Institute stating that the origin of the ruby is Burma (Myanmar), with no indications of heating, that the colour may also be called 'pigeon blood red', and an Appendix letter.

Report no. 17070011 dated 7 July 2017 from the Gübelin GemLab stating that the origin of the ruby is Burma (Myanmar), with no indications of heating, that the colour may also be called 'pigeon blood red', an Appendix letter, an Information sheet on 'Unheated rubies' and a Gemmological Profile.

The property of a lady of title.