Important pair of 5.06 and 4.01 carats Burma, Mogok "Pigeon's Blood" ruby and diamond pendent earrings

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.';