Body Candy Solid 18k Yellow Gold 1.5mm Genuine Pink Sapphire Left Nose Stud Screw 20 Gauge 1/4" Gauge size 20 gauge; .8 millimeters Length 1/4 inch; 6 millimeters Nose stud with natural pink sapphire in a prong setting Solid 18k yellow gold nose ring with polished finish Nose screw designed for use in left nostril