Lot 1923. A 10.27 carats oval-shaped ruby and diamond ring. Estimate HKD 2,500,000 - HKD 3,500,000 (US$320,000-440,000). © Christie's Images Ltd 2017

The oval-shaped ruby, weighing approximately 10.27 carats, flanked by triangular-shaped diamonds, mounted in gold, ring size 6.

Accompanied by report no. 82194 dated 25 September 2015 from the SSEF Swiss Gemmological Institute stating that the ruby is of Siam (Thailand) origin, with indications of heating, minor residue in healed fissures.

Accompanied by report no. 9309062 dated 20 September 1993 from the Gübelin GemLab stating that the ruby is of Burma (Myanmar) origin.

Christie's. Hong Kong Magnificent Jewels & The Pink Promise, 28 November 2017, Hong Kong