Couples gift each other promise rings or friendship rings to swear by their commitment towards each other in a serious relationship. It may be given as a symbol to each other, wherein a couple is committed towards the relationship, but are not yet considering engagement or marriage. A promise ring could be worn on any finger, however ring fingers are preferred. The left hand ring finger is the favored choice, but is ideally worn on the right hand ring finger to avoid confusion with an engagement ring.

The custom of exchanging promise rings dates back to biblical times when betrothals were an essential part of social life. This custom was in a way different wherein the to-be-groom and the to-be-bride had to sign a contract and the to-be-groom had to give his bride-to-be a betrothal ring. These rings were initially made from iron; however as the tradition grew stronger, the value of these rings increased with rings being made of gold, silver, or platinum along with a range of precious stones studded into the ring. Many people also judge how serious the couple's relationship is by the value of the rings they possess. In keeping with the times, jewelry designers have come out with innovative and creative promise rings. Some rings also have the names or initials of the person engraved into them. A variety of promise rings are available, however the diamond and white gold combination is highly popular amongst couples.

Promise rings are often exchanged along with vows. It is essential that the specific meaning of the ring is effectively communicated between the couple. This is important as the recipient should understand what exactly the ring symbolizes. This will avoid confusion and make the use of the promise ring worthwhile.