Monica Vinader 's Siren earrings feature irregularly-shaped multi-faceted green onyx gemstones encased in 18-carat gold-plated sterling silver. Inspired by the waved, uneven look of the seas, these elegant contemporary earrings are a chic accessory to everyday outfits. Monica Vinader 18ct gold-plated wire earrings Drop earrings 18ct gold-plated vermeil on sterling silver, green onyx gemstones (12mm x 10mm) Polish with a soft, dry cloth and avoid contact with chemicals Each piece of Monica Vinader jewellery is guaranteed for 12 months (under conditions of normal wear and tear)