Conch Pearl, Pink Diamond and Gem-Set Brooch, by Chopard. Photo courtesy Tiancheng International Auctioneer Limited

Modelled as an orchid, the pistil set with an elongated pear-shaped conch pearl measuring 140 x 80 x 20mm, capped by pavé-set pink diamonds, the petals and leaf pavé-set with pink spinels and tsavorite garnets respectively, to white and brown diamond pavé-set stem. Diamonds and pink diamonds together weighing approximately 6.00 carats and 0.70 carats respectively. Pink spinels and tsavorites together weighing approximately 28.10 carats and 2.30 carats. Mounted in 18 karat yellow gold and white gold. Signed Chopard and numbered 2628442. Estimate US$280,000 - 330,000

Accompanied by Chopard Certificate of Origin.

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/