An art deco diamond bracelet, circa 1925. Photo: Bonhams.

Designed as a series of highly articulated rectangular openwork plaques, each centrally-set with an old brilliant-cut diamond in collet-setting, within a similarly and rose-cut diamond surround, millegrain-set throughout, old brilliant-cut diamonds approx. 4.35cts total, indistinct maker's mark, French assay mark, length 19.2cm. Estimate £3,500 - 4,500 (€4,200 - 5,500)

Bonhams. JEWELLERY. London, Knightsbridge, 9 Apr 2014 - www.bonhams.com