Metal Material: .925 Sterling Silver Average Weight: 1.61gm Band Width: 3.5 mm Finish: Polished Plating: Rhodium Stone Type: Sapphire, Lab Created Stone Creation Method:Lab Created Stone Treatment:Heating Stone Shape:Round Stone Color:Blue Stone Size:2.5 mm Stone Quantity:20 Stone Weight:1.66 ctw (total weight) Stone Setting:Bezel Set