Sterling Silver Rhodium-Plated Blue Topaz Pendant W/NecklaceMetal Type Sterling Silver Item Number QX990BT 18 Finish Polished Stone Type_1 Swiss Blue Topaz Stone Color_1 Blue Stone Quantity_1 13 Length of Item 18 in Stone Setting_1 Shared Prong Chain Length 18 in Chain Type Rope Chain Width 0. 9 mm Charm Element Length 3. 5 mm Charm Element Width 33. 3 mm Clasp Connector Spring Ring Clasp Thickness (Female end) 0. 3 mm Clasp Thickness (Male end) 1. 3 mm Clasp Width (Female end) 2. 7 mm Clasp Width (Male end)