SAPPHIRE, EMERALD, RUBY AND DIAMOND BROOCH, MONTURE CARTIER, CIRCA 1960 Designed as a bird perched on a branch, set with calibré-cut emeralds and diamonds, the wings enhanced with calibré-cut sapphires, circular- and single-cut diamonds, the head set with a cabochon ruby, to the circular-cut diamond eye, signed Monture Cartier and numbered, French assay and maker's marks, case.