Emerald and diamond ring. Photo Tiancheng International

Centring on an octagonal step-cut emerald weighing 14.83 carats, flanked on each side by a trilliant diamond together weighing approximately 3.00 carats, mounted in 18 karat white gold and yellow gold. Ring size: 4½. Estimate: HK$1,800,000 - 2,300,000 (US$230,000 - 295,000). Sold for HK$2,124,000

Accompanied by Gubélin report numbered 13051031, dated 15 May 2013, stating that the 14.83 carat emerald is natural, Green colour, of Colombian origin, with indications of minor clarity enhancement.