Vintage 18K Gold Onyx Ruby Signet Ring Vintage 18K gold signet ring with black onyx and vivid red ruby cabochon. Etruscan revival detailing. Hallmarked and tested. Materials: 18K Yellow Gold (hallmarked), Onyx, Ruby Total weight: 2.68 g Ring size: 54 (EU) Dimensions: Ring head: 11.4 × 8.6 × 3.6 mm Ring band: 4.2 to 1.7 mm Gemstones: Ruby: 1 piece, round shape, cabochon cut, fancy vivid red, approx. 2.0 × 2.0 × 0.9 mm Onyx: 1 piece, oval cabochon cut, black colour, approx. 6.8 × 5.0 × 1.0 mm Hallmarks: An 18K gold hallmark and a maker’s mark on the inside of the ring arm (see photos) Condition: Good vintage condition — light signs of wear consistent with age. The gemstones are well set and retain attractive lustre. Style: Antique Revival / Signet Style with Granulated Decoration Era: circa 1950s Description: A charming vintage 18K yellow gold signet-style ring featuring a vivid red ruby cabochon set in the centre of an oval black onyx plaque. The ring showcases finely detailed granulated goldwork and sculptural shoulders, reminiscent of antique Etruscan or Renaissance revival designs. Compact yet highly decorative, this piece demonstrates excellent mid-century craftsmanship and a bold contrast of colours — an elegant statement of timeless beauty. This piece has been fully checked by our in-house jeweller & gemologist. Shipped tracked and insured from the Netherlands (within the European Union). You can expect to receive this item in 5 business days or less.