opal pendant on sterling silver chain . The 18" chain is stamped 925 on the spring ring clasp, dress forms neck is 15" and this fit perfectly see images above , questions are always welcome. Weighs 5 grams or .17 ounces on my kitchen scale. Sweet , delicate and opals are so magical to me . Good used condition there are scratches to pendant consistent with being worn and handled through the years and dropped a few times. Very pretty bezel set opal in a subtly ornate setting . Dime in picture to help with size visualization of the pendant opal.