AN ART DECO BROOCH, BY CARTIER, 1927. Designed as a curved openwork diamond and enamel plaque, set with a green tourmaline, accented by a rubellite tourmaline, to the articulated triple staggered cascade, the centre suspending a pear-shaped green tourmaline, to the rectangular-cut lighter green tourmaline and aquamarine link, with an aquamarine terminal, flanked by similar tassels, mounted in platinum and gold, with French assay marks, signed Cartier, France.