Round cut diamond carat size chart

Carat Weight: 0.25ct 0.50ct 1.0ct 1.5ct 2.0ct 2.5ct 3.0ct 4.0 5.0

Round mm:4.1 5.2 6.5 7.4 8.2 8.8 9.4 10.4

diamond size depends on the cut of the stone it could be just about any size. Princess Asscher Marquise Radiant Oval