Metal Material: .925 Sterling Silver Average Weight: 0.68gm Rhodium Plated Length of Item:11.15 mm Width of Item:10 mm Lab-Created Blue Opal Push Back Closures Nickel/Lead-FreeĀ Stone Type: Cubic Zirconia (CZ) Stone Shape:Round Stone Creation Method:Synthetic Stone Treatment:Synthetic Stone Color:White Stone Quantity:16 Stone Type: Swiss Blue Topaz Stone Shape:Oval Stone Color:Blue Stone Quantity:2