Ruby and diamond ring. Photo: Sotheby's.

Centring on a cushion-shaped ruby weighing 5.85 carats, flanked on each side by a half moon-shaped diamond together weighing approximately 1.75 carats, mounted in platinum and 18 karat yellow gold. Ring size: 6½. Estimate 3,800,000 — 4,500,000 HKD

Accompanied by SSEF report numbered 68845, dated 25 June 2013, stating that the ruby is natural, of Burmese origin, with no indications of heating.

Sotheby's. Magnificent Jewels and Jadeite. Hong Kong | 07 Apr 2014 - www.sothebys.com