There's no shortage of fancy shapes for grooms considering the solitaire setting. If the bride has classic taste but yearns for an air of distinction, the groom is wise to opt for something besides a round stone. Second in popularity to the round diamond is the princess cut, which is an elegant square shape. Other cuts include emerald, oval, asscher, marquise, cushion, radiant, heart and pear. Celebrity brides helped in part to popularize some of these alternative shapes, particularly princess and emerald cut diamonds. Found on the famous fingers of actresses Katherine Heigl and Eva Longoria Parker, these styles have worked their way into the hearts of style- and celebrity-conscious women everywhere.