the dimensions of a 2-carat diamond can range relying on its cut, form, and proportions. Carat is a measure of a diamond's weight, now not its bodily dimensions. however, there is a trendy variety of sizes for 2-carat diamonds. In terms of diameter, a spherical fantastic-reduce 2-carat diamond generally has a diameter of round 8.1mm. remember the fact that different shapes, which includes princess, emerald, or oval cuts, may additionally have extraordinary dimensions despite the fact that they've the same carat weight.