Marquise cut diamond wedding rings sets are a beautiful and unique way to commemorate your special day. marquise cut diamonds are characterized by their elongated shape and tapered ends. This striking cut is said to resemble the shape of a boat, and its marquise cut facets help to create the illusion of greater size. marquise cut diamonds are often used as accent stones in cascading halo designs, or as the centerpiece of an engagement ring. marquise cut diamonds are also a popular choice for solitaire rings. No matter how you choose to style your marquise cut diamond, it is sure to add a touch of elegance to your wedding day.