Round Diamond

Overview

Round diamonds, also known as brilliant cuts, are the most widely used diamond style due to their highly optimized light performance and symmetrical circular shape. This design is engineered to maximize brilliance and fire.

Their facet arrangement is mathematically calculated to enhance light reflection, creating strong sparkle and scintillation even in low lighting conditions.

Because of their balanced proportions and universal appeal, round diamonds are commonly used in engagement rings and luxury jewelry across global markets.

At John Ann Foley Diamond Institute, we study round diamonds for their optical efficiency, facet precision, and their dominant role in modern diamond cutting standards.