A conch pearl and diamond necklace-bracelet combination. Photo Bonhams. 

The line of brilliant-cut diamonds suspending two rows of conch pearls, graduating in size to the centre, each connected by pairs of brilliant-cut diamonds between caps pavé-set with similarly cut diamonds, bracelet detachable from necklace, diamonds approximately 9.25 carats total, conch pearls approximately 145.00 carats total, necklace length 47.3cm, bracelet length 21.5cm (2). Estimate HK$ 1.1 million - 1.4 million (€100,000 - 130,000)

Bonhams. FINE JEWELLERY & JADEITE. Hong Kong. 23 Nov 2013 14:00 CST