What is a marquise cut diamond? Recognized for its long, narrow silhouette and pointed ends, this distinctive diamond shape is a rare yet striking choice for engagement rings. Its elongated, almond-like form often gives the illusion of a larger size compared to its actual carat weight. Also called the “navette cut,” the marquise shape has a flattering effect, making the wearer’s fingers appear longer and more slender. In addition to its elegance, the marquise cut is also a highly affordable diamond option.