Princess Diamond is a good choice for its flexibility in setting in any style of Diamond ring. The Princess Diamond is known for its geometric, sharp square shape. It features a contemporary cut, with angular, strong lines, and it has a pyramidal shape, with four beveled sides. The princess cut technical name "square modified brilliant" is a diamond shape often used in engagement rings. The term was first used in 1960. Princess-cut Diamonds also tend to have a significantly lower price per carat than round-cut diamonds and other Diamonds Shape.