This ring is made with a shard of blue and white sea ceramic pottery, bezel set in fine and sterling silver. The ring band is made with rounded rectangular sterling wire. This is a natural sea tumbled pottery shard, very similar to sea glass, and its shape is entirely unique. The piece is 13mm long and 11mm wide. Due to the fragility of the ceramic, this ring cannot be resized and is only available in size 7. Over time, sterling silver rings will oxidize and appear to darken in color. To keep your ring clean and remove the oxidation, wipe gently with a silver polishing cloth. Do not use liquid jewelry cleaner - this risks damage to the ceramic.