Art Deco bracelet from Roberto Coin. Polished 18karat rose gold. Black jade with white diamond edges. Hinged opening with button clasp. 7.70 total black jade carat weight. 0.90 total diamond carat weight. Signature hidden ruby. Approx. 1.9" x 2.3" opening (48mm x 58mm). Approx. 0.3"W (8mm). Imported.