Body Candy Solid 18k White Gold 1.5mm Genuine Emerald Straight Fishtail Nose Stud Ring 20 Gauge 17mm Gauge size 20 gauge; .8 millimeters Length 11/16 inch; 17 millimeters Nose stud with natural emearld in a prong setting Solid 18k white gold nose ring with polished finish Straight fishtail nose stud can be bent to fit your nostril size