This Bioplast labret has a comfortable push in style and is designed with 14k solid gold and a genuine 1.5mm green diamond natural stone. Solid 14k gold push fit labret with bioplast stem. 16 gauge labret body jewelry. Specifications: 16 Gauge (1.2mm), 5/16" (8mm), Solid 14k Gold, 1.5mm Genuine Green Diamond, Flexible Bioplast, Prong-Setting