Jadeite and Diamond Ring. Photo courtesy Tiancheng International Auctioneer Limited

The rich green translucent jadeite carved as a lotus leaf, decorated with collet-set rose-cut diamond dews, adorned with a yellow gold poised frog. Mounted in 18 karat white and yellow gold. Ring size: 6 1/2. Estimate US$16,000 - 24,000

Accompanied by Hong Kong Gems Laboratory report numbered GL77837 dated 27 March 2013, stating that the deep green with deep green vein jadeite is natural, known in the trade as "A jade".

Tiancheng International Auctioneer Limited. SPRING AUCTION 2013 JEWELLERY AND JADEITE. 15 Jun · 3 pm. Hong Kong Headquarters 30/F Bank of China Tower 1 Garden Road, Central Hong Kong http://www.tianchengauction.com/