YEARS 1880 DIAMOND SNAKE BROOCH Representing a coiled snake, the silver head paved with rose-cut diamonds, the eyes encrusted with cabochon rubies. Mounted in 18K yellow gold. French work. Gross weight: 11.88 g (oxidation to the 18K alloy) Diameter: 3.2 cm. A rose-cut diamond, rubies, silver and 18k yellow gold snake brooch, circa 1880. French assay mark. Gross weight : 11,88 gr. (oxidized 18K gold alloy) Diameter : 3,2 cm.