More Details Blue topaz faceted station bracelet by Roberto Coin. Polished 18-karat white gold hardware and settings. Faceted oval and round-cut blue topaz stations. Round-cut white diamonds as oval halos. 1.44 total diamond carat weight. 34.20 total topaz carat weight. Signature hidden synthetic ruby. Approx. 3" diameter. Push-lock clasp. Made in Italy.