Diamond Carat Chart Actual Size. The right diamond is of excellent cut and weighs 0.92 carats with a surface area of 6.2×6.2mm. Diamond size chart describes what would be the exact mm size of the diamond.

Later on, there was the introduction of a metric carat chart for precise measurement of diamond size in mm. This is a millimeters to carat conversion chart for different shape diamonds. A diamond size chart can help you determine what might be the right carat weight for you by providing a mm to carat comparison.