Lot 186. An exceptional 7.08 carats 'pigeon blood red' Mogok, Burma ruby and diamond ring. Estimate CHF 1,700,000 - CHF 2,200,000 (USD 1,714,003 - USD 2,218,122). Photo Christie's Images Ltd 2016.
Set with an oval-cut ruby, weighing approximately 7.08 carats, between fancy-cut diamond shoulders, ring size 6 ½, mounted in gold.
Accompanied by report no. 87463 dated 29 August 2016 from the SSEF Swiss Gemmological Institute stating that the origin of the ruby is Burma (Myanmar), with no indications of heating, and that the colour may also be called 'pigeon blood red', an Appendix letter and a Premium book.
Report no. 16037100 dated 3 March 2016 from the Gübelin GemLab stating that the origin of the ruby is Burma (Myanmar), with no indications of heating, and that the colour may also be called 'pigeon blood red', an Appendix and two Information sheets on 'Rubies from Mogok, Burma' and 'Unheated rubies'.
Christie's. Geneva Magnificent Jewels, 15 November 2016, Geneva