.925 sterling silver Gemstone(s): Ethiopian Opal = approximately 1.15 ct. tw. The Ring Size Guide(https://s3.amazonaws.com/more-info/guides/ring-size) Ring cannot be re-sized It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent, and may require special care. Metal Weight: 2.86 grams
