Are Moonstones a Good Option for Promise Rings? For centuries, promise has been a term that describes a commitment to someone, and in a love relationship, promise rings are the symbol of commitment and dedication, which are exchanged between the couples as a token of their promise to each other, and both partners ensure that their bond is for forever. The ritual of exchanging Promise Rings dates back to ancient times, and in modern culture, too, it continues to be a meaningful and romantic gesture. The concept of promise rings is deeply rooted with the idea of making a commitment to someone you care about.