What is the millimeter size of a 1 carat Round Cut Diamond? Use our diamond size chart to predict the carat weight by the mm diameter of a round diamond. Use our diamond size chart to understand the millimeter (mm) size of each diamond shape. . Shop round Diamonds. Round MM Size, Round Carat Weight . The millimeter tells you the true size of the diamond. With our diamond carat charts you can understand the millimeter differences between round and fancy . Learn how diamond carat weight affects size and price. Compare actual size diamonds of different carat weights using a printable size chart. . Size, Round 1 ct. We've estimated the average diameter (mm) for excellent cut round diamonds using measurements listed on Blue Nile. Many diamond size charts tend to . The following diamond size charts and tables will help you visualize how a . round brilliants make up for more than 60% of all diamonds sold in the world. 19 de abr de 2017 - Diamond Carat Weight Guide With Diameter Size Chart. By Michael . *Sizing is based on averages for a brilliant round diamond. Consult with . Click on the the cut to view its millimeter to carat conversion chart. Round; Princess; Asscher; Marquise; Radiant; Cushion; Pear; Oval; Heart; Trillion; Emerald . 11/4 carat. 11/2 carat. 13/4 carat. 2 carat. 3 carat. 4 carat. 7mm. 7.4mm. 7.8mm. 8.2mm. 9.3mm. 10.3mm. CJ. Cross's Diamond Carat Size Chart. Prior to printing .