Body jewelry rings come in several common and popular types. Many of them resemble each other so it’s not surprising that people are often confused about which ring belongs to which type. Generally speaking, all body jewelry rings are designed as hoops. That is, they are rounded and make almost a perfect circle. However, it is important to know that there are also rings that are not round but more elliptical, or D-shaped. These rings look very striking and can sit better on the piercing, depending on the body type.