Lot 2089. A 5.03 carat Burmese 'pigeon blood' ruby and diamond ring. Estimate HKD 8,000,000  - 12,000,000 (USD 1,126,400 - 1,536,000). © Poly Auction

Centering upon a cushion-shaped ruby weighing approximately 5.03 carats, surrounded by six D color oval-shaped diamonds, weighing 3.71 carats in total, to the brilliant-cut diamond half-hoop, mounted in 18K gold, ring size 6. 

Accompanied by report no. 90723 dated 8 March 2017 from the SSEF stating that the ruby weighing 5.032 carats is of Burma (Myanmar) origin, with no indications of heating, and the color of this ruby may also be called 'pigeon blood red' based on SSEF reference standards Also accompanied by 6 GIA diamond dossiers, details see table.