Emerald cut engagement rings are a timeless, classic option for the bride-to-be. Emerald cut diamonds are step-cut which gives them the "hall of mirrors" effect. They can appear longer and more rectangular or square depending on their ratios. Because of their window-like facets, it's important to select an emerald cut diamond with a higher clarity grade. Emerald cut diamonds look stunning in solitaire engagement ring settings, halo engagement ring settings or three-stone engagement ring settings.