The radiant cut diamond’s signature is in its trimmed corners. The radiant cut is a versatile choice for jewellery, and can be set with round, or baguette diamonds. Radiant cut diamonds range from square to rectangular, based on their length to width ratio. For a square radiant diamond, look for length-to-width ratios from 1 to 1.05. Length-to-width ratios greater than 1.10 will be more.