Dreamy pink opal cabochons are set in a fluid molten gold hoop. Perfect for the conch, helix and lobe piercings. Sold as a single. SIZE & MATERIALS Composition: 14k yellow gold, pink opal Measurements: inside diameter: 10mm, clicker thickness: 19 gauge ( 0.95mm) Closure: hinge mechanism, clicker closure Read about piercing jewelry and closure systems .