An opal inlay bar and round diamond bezel are brought together to form a geometric stud. An understated everyday option perfect for the helix, lobe, tragus, lobe, and to be worn on its own or as a pair. Sold as a single. * This piece comes with a 6.5mm back post. Additional posts with different lengths can be purchased as add-ons. SIZE & MATERIALS Composition: 14k yellow gold, opal, white diamond Measurements: stud: 4 x 3 mm, threading: 16 gauge (1.2 mm) width, 6.5 mm post length Closure: threaded heart-shaped ball back Read about piercing jewelry and closure systems . Collections Opal Jewelry - Opal Studs - Diamond Piercing - Helix Piercing - Lobe Piercing - Tragus Piercing - Flat Piercing - Opal Piercings - Diamond Jewelry - 14k Gold Jewelry