The shape of a diamond is decided with the aid of its reduce, and the maximum common form for a 0.90 carat diamond, like many other diamond sizes, is typically the spherical super cut. The round outstanding reduce is thought for its amazing brilliance and sparkle, making it a famous desire for diamond engagement rings and different earrings. but, it is important to note that the selection of diamond form in the long run relies upon on personal preference, and there are various different shapes available, which include princess, oval, cushion, and emerald, among others.