YEARS 1925 OPAL AND BLACK ENAMEL RING Round ring centred on a cabochon opal surrounded by a black enamel border. Set in silver and 18K pink gold. French work (mixed hallmark France). Gross weight: 4.85 g (slight damage to the enamel, slightly chipped opal). Finger size: 59. Diameter: 1.7 cm. An opal, black enamel, silver and 18K pink gold ring, circa 1925. French assay mark. Gross weight : 4,85 gr. (little shocks to the enamel, chips to the opal) Size : 59. Diameter : 1,7 cm.