When buying a diamond, you know how important the 4Cs are in defining diamond quality. But well before buying comes dreaming. And when you envision the perfect diamond you’ll own one day, chances are the first thing that comes to mind is its shape.

A diamond’s shape refers to the general silhouette of the stone and is not to be confused with cut, or the stone’s facet arrangement. For more information on how to differentiate between cut and shape, go here.

Read on for GIA’s Diamond Shape buyers guide to some of the most frequently seen diamond shapes, and their defining attributes. Share with friends and family alike!

Diamond Shapes