Diamonds are cut in many different and exciting shapes. The shape of a diamond is often confused with its cut. Shape refers to the basic form of the diamond. Cut or proportions, on the other hand, refer to the ability of each these shapes to reflect light. A round diamond, for example, could have a good cut or a poor cut depending upon its proportions. When it comes to its shape, it is simply a matter of personal taste.

The most popular shape is by far the round brilliant cut.

The following are other popular shapes.