Marquise cut diamonds are unique in their shape, taking on a rounded shape that is tapered at the ends and wider in the center. This cut of diamond is ideal for maximizing the weight of the carat and achieving the appearance of an even larger stone. Marquise diamonds come in a variety of sizes and ratios, ranging from thinner to wider, depending on the look you're going for. Our selection of marquise engagement rings is extensive; whether you're looking for an antique style setting or something a little more contemporary, marquise cut diamonds are both versatile and flattering, especially when they're set with pear or round shaped side diamonds. Shop our variety of marquise diamond rings here at Professional Jeweler.