An Art Deco diamond and emerald bracelet, by Linzeler-Marchak, circa 1925. Estimate £60,000 - 80,000 (€82,000 - 110,000). Photo Bonhams.

Composed of five slightly curved openwork plaques of rectangular outline, pavé-set throughout with old brilliant and single-cut diamonds, each with four principal old brilliant-cut diamonds and a step-cut emerald to the centre, connected by pierced buckle-shaped connectors set with similarly-cut diamonds and millegrain detail, mounted in platinum, diamonds approximately 38.00 carats total, emeralds approximately 7.85 carats total, signed Linzeler-Marchak, French assay marks, length 17.8cm

Note: Linzeler-Marchak was founded in Paris in 1922 by Robert Linzeler, a master goldsmith and Alexander Marchak, whose father had founded the eponymous Russian jewellery firm, one of the great competitors of Fabergé, known as the "Cartier of Kiev". Linzeler-Marchak's partnership was short-lived, ending in 1925, but in their three years of operation, the firm was famed for its superior Art Deco jewels of outstanding technical quality, of which this is an exceptional example.

Bonhams. FINE JEWELLERY, 24 Sep 2015 12:00 BST -LONDON, NEW BOND STREET