Conch pearl pendant. Photo courtesy Tiancheng International Auctioneer Limited

Set with a baroque drop-shaped conch pearl measuring approximately 22.45 x 14.30 x 9.25mm, capped by a pavé-set diamond surmount. Accompanied by an 18 karat white gold chain. Mounted in 18 karat white gold. Estimate US$17,000 - 24,000

Accompanied by a SSEF report numbered 65194 dated 02 October, 2012, stating that the baroque drop-shaped conch pearl is natural, half-drilled, pink to white with a fine flame structure, with no indication of artificial colour modification.

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/