An engagement ring is most often given upon the occasion of a proposal or soon after a couple has decided to become engaged. Typically, the ring features one dominant stone set in any number of band styles. But modern choices have extended into three-stone rings, cluster rings, and even bands that are primarily considered to be more of a wedding ring style.
A wedding ring (or wedding band) is usually exchanged at the wedding ceremony as the official symbol of the union of marriage. Traditionally, wedding rings have been worn together, often being designed as a bridal set or even being soldered together in some cases so they become one piece. Wedding rings are usually simpler in their style and are a band without any large stones or a centrepiece gemstone.