A diamond and coloured diamond serpent bangle, by A. Codognato. Photo Philips de Pury & Co

Designed as a coiled serpent, its body articulated and engraved as snake scales and decorated with a line of collect-set diamonds to a pavé-set diamond head and tail, the head decorated to the centre with a pear-shape rose-cut diamond and pear-shaped diamond eyes, inner diameter approximately 7 cm, c. 1960s, signed ‘A. Codagnato’. ESTIMATE £45,000-55,000 - SOLD AT £52,850
Philips de Pury & Co. Jewels. 1 june 2011. London www.phillipsdepury.com