Well, a lot of people usually say that a wedding ring is basically a ring on the finger of a man/woman that indicates that he/she is married.. I think its a symbol of love and an assurance between the couple that they shall cherish and love one another for thee rest of their lives..
Most of the wedding rings are circular in shape.. Since circle has no beginning or end and is kind of a symbol of infinity, it carries a symbolic meaning for the couple..