Emerald-cut three-stone engagement rings can be your new favorite obsession if you love clean cuts with solid lines and classic design. A three-stone ring provides more diamond coverage on your finger, and emerald cuts add a symmetry to your ring like none other. These rings represent a story, as each stone symbolizes the past, present, and future of a relationship. Whether to keep all three stones the same size or the center stone slightly larger than the side stones is totally up to your choices and preferences.