Art Deco gold and platinum diamond brooch, collet set in platinum with an early round brilliant cut diamond to square collets set with 6 old European and mine cut diamonds to 18ct white gold frame and tapered bar, diamonds total approx. 0.25ct, size 56 x 5 mm, wt. 3.62g, in silk lined box retailed by Goldsmiths & Silversmiths Company Ltd London.