This solid 14k yellow gold .0225 CT diamond nose stud has a small ball on its back end that holds the nose stud firmly in place. This type of nose stud, with the ball on the end to hold it in place, is called a nose bone. The nose earring features a single diamond hand set into 14k gold. High quality at a great price. This listing is for one single nose stud. 1-14YNOS-NE920-2.25PT.