Lot 202. A fine 18 carat white gold, emerald and diamond 'serpenti' watch bangle, by Bulgari. Estimate £200,000 – £250,000($289,200 - $361,500). Photo Christie's Image Ltd 2016.

The coiled sprung body entirely composed of pavé-set brilliant-cut diamond and circular-cut emerald overlapping scales, to the pavé-set diamond head with polished malachite eye detail, the hinged jaw opening to reveal a similarly-set emerald and diamond watch dial, with polished hands, quartz movement, internal circumference 15.8cm, with convention assay marks for 18ct gold, in black leather Bulgari pouch and outer card case. Signed Bulgari to the dial and case, no.SP W 40G BT8 

Christie's. IMPORTANT JEWELS, 15 June 2016, London, King Street