Lot 220. 10.65 carats Mogok, Burmese cabochon star ruby and diamond ring. Estimate HK$480,000 - 680,000 (US$61,500 - 87,200). Courtesy Tiancheng International.

Centring on a cabochon star ruby weighing 10.65 carats, decorated with brilliant-cut diamonds together weighing approximately 1.50 carats, mounted in 18 karat white and yellow gold. Ring size: 6 

Accompanied by Lotus premium report numbered 4831-0198, dated 7 January 2016, stating that the 10.65 carat star ruby is natural, Red colour, of vivid to intense saturation and medium-deep tone, of Burmese origin, with no indications of heating or treatment; along with a comment on colour type stating that 'the highly saturated crimson colour of this gem earns it the LOTUS "Pigeon's Blood" distinction'; and a note stating that 'this gem displays a six-rayed star. Star gems are increasingly rare in today's market.';