Gold and Silver Jewellery Kind DÉCO emerald brillant ring, about 1930, yellow gold. G sharp. Gew. Approximate 3, 5 g, hallmarked 585, ring size 53, 4 (17 mm), signed. Shoulder and lateral ring head with volutes decoration, set with three rectangular faceted emeralds, as well four brilliant-cut diamonds, middle emerald framing damaged.