Colored Star Stone Sterling Silver Micro Nose Stud. Each of our premium quality star stone nose studs are made of genuine .925 Sterling Silver. The stone is brilliantly cut into the perfect shape of a star and is still small enough to comfortably fit flush and seamlessly into your nose piercing. The stud is 20 gauge and the sterling is flexible to you can bend the stud in to the shape you prefer, screw or bent! Each order contains one nose stud in your choice of stone color.