Lot 227. Important pair of 5.06 and 4.01 carats Burma, Mogok "Pigeon's Blood" ruby and diamond pendent earrings. Estimate HK$6,500,000 - 9,000,000 (US$833,300 - 1,150,000). Courtesy Tiancheng International.

Each centring on an oval ruby weighing 5.06 and 4.01 carats respectively, surrounded by oval and brilliant-cut diamonds extending to the surmount, the diamonds altogether weighing approximately 8.95 carats, mounted in platinum and 18 karat yellow gold. 

Accompanied by Gübelin report numbered 16021052/1 and 2, dated 26 February 2016, stating that the 9.07 carat rubies are natural, Red colour, of Burmese origin, with no indications of heating; along with an information sheet, stating that 'Within Burma (Myanmar), the most famed region is the Mogok Valley, or Mogok Stone Tract...Mogok-type rubies typically possess a red body colour and red UV-fluorescence. In addition, they may contain tiny amounts of light-scattering rutile silk and a swirl-like growth pattern. It is this combination of features which gives these rubies their characteristic appearance.'; and an appendix, stating that 'The two natural rubies...possesses a combination of exceptional characteristics such as high transparency and saturated red colour. In addition, these remarkable gemstones have been spared of thermal treatment. A pair of natural, non-enhanced rubies from Burma (Myanmar), endowed with such intrinsic qualities is rare.';