An increasingly popular variation white gold wedding ring is a wedding set, or bridal set, which combines a diamond engagement ring and a diamond wedding ring as a matching set. Clever design and careful matching of the stones means that whilst the engagement ring can be worn on its own, it only looks complete when the wedding ring is added. Another popular setting is the side-stone setting which has a larger diamond set in the middle with smaller diamonds set on either side to enhance the beauty and sparkle of the center stone. Some couples looking for a less conventional engagement ring, choose a gemstone like emerald or ruby in place of the central diamond in a three-stone ring.