Simple and stunning, this solitaire barbell stud sparkles up your stack. It combines the luxury of gold with the durability of titanium. Made in responsibly sourced 14K hollow yellow gold and hypoallergenic polished titanium that's both lightweight and durable. Stone: Set with 1/20 ct. t.w. diamond solitaire Gauge: 18 Tube Length: 5/16" Height x Width: 2.37 x 2.37 mm Fits cartilage piercings: helix, forward helix, tragus, conch and flat.