An Art Deco black lacquer and diamond cuff bangle-double-clip brooch combination, by Cartier, circa 1935. Estimate £30,000 - 40,000 (€41,000 - 55,000). Photo Bonhams.

The slim sprung gold band applied with black lacquer, with a central scroll motif at the centre decorated with brilliant, baguette and single-cut diamonds, diamonds approximately 5.60 carats total, scroll motif detaches to form a brooch and a pair of double clips, signed Cartier London, numbered 1837, lacquer imperfect, diameter for bangle 5.9cm, length of each clip 2.1cm, fitted Cartier case 

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