The three diamonds in a three stone engagement ring are often seen as referring to the past, present and future of a relationship. Regardless of whether you value symbolism in your engagement ring or not, Diamond Exchange has three stone engagement rings to suit every style and taste so that you can find a ring to last forever. Choose from sleek and modern princess cut bezel settings or traditional oval and marquise cuts to customise a ring that expresses your personality. For a truly unique engagement ring, consider a trilogy ring with side stones.