Lot 58. 8.04 carats Colombian  emerald and diamond ring. Estimate: HK$2,200,000 - 3,200,000 5US$282,000 - 410,000). Sold for HK$2,640,000. 

Centring on a cushion-shaped emerald weighing 8.04 carats, flanked by trapezoid step-cut diamonds together weighing approximately 1.70 carats, mounted in 18 karat yellow and white gold. Ring size: 7 

Accompanied by Gübelin report numbered 12097350, dated 25 September 2012, stating that the 8.04 carat emerald is natural, Green colour, of Colombian origin, with no indications of clarity enhancement; 

SSEF report numbered 87567, dated 20 September 2016, stating that the 8.041 carat emerald is natural, Green colour of medium strong saturation, of Colombian origin, with no indications of clarity modification in fissures at the time of testing. 

Tiancheng International. AUTUMN AUCTION 2016, JEWELLERY AND JADEITE