Depending on the type of piercing, there are four basic styles of jewelry generally worn in the lip. Those are: the stud, the talon, the curved barbell, and the circular.
For those who have a vertical labret piercing, an inverted vertical labret (also called an Ashley), or a jestrum (the vertical version of a medusa piercing) which lays just above the top lip’s center underneath the septum, curved barbell jewelry will be the standard. The barbells are usually small, with a length of about half an inch or less.
Persons who have a standard Medusa piercing or a Monroe will generally prefer a stud (jewelry that has a flat backing and a visible ball or gem that either screws on or pushes into the back). Studs can also be worn by those who have standard labrets, lowbrets, dimple piercings, or any variety of “bites” including Dahlia bites, cyber bites, spider bites, snake bites, etc.
Talons, also called claws or hooks, are worn almost exclusively in regular labret piercings or “dolphin bites,” a set of two piercings underneath the bottom lip. This style is often referred to as “Disturbed Labret,” after famous wearer David Draiman, front man of the rock band Disturbed.
Finally, circular jewelry can be worn in piercings of either the bottom or top lip. Common types of circular include the ball captive ring, the horseshoe ring, and the lippy loop, which gives a look similar to that of a vertical labret piercing, but for those who have a regular piercing.
All of these types of jewelry will commonly be found in either a fourteen or sixteen gauge, and will be measured by length for barbells or stud ring shafts, and by diameter for circular pieces.