modelled as a stylised duck running to take off, a principal leaf carved emerald forming the body, diamond set geometric legs, rubies to the head and black enamel accents, signed 'CARTIER', serial numbers 5502 and 3302Length 4.8cm / 1 7/8''Weight: 6.5g
Early 20th century emerald and diamond panel brooch, English c.1915, probably by London & Ryder, of garland style, the openwork hexagonal panel centred by a trio of oval cabochon emeralds,
Art Deco diamond and rock crystal panel brooch by Boucheron, Paris, of geometric design formed of stepped overlaid polygonal crystal and diamond panels, the larger crystal septagon panel base topped by a pave diamond hexagon and a crystal pentagon, all pierced through and with diamond geometric join pave set with baguette and round brilliant cut diamonds, mounted in platinum and white gold to the hinged clip to back, this signed 'Boucheron Paris', with French assaymarks and indiscernible workshop mark