Diamond Size Conversion Chart

MM to Carats Stone Conversion Chart

(Note: These Are Approximate Diamond Sizes)

Carat Size

Round

Pear

Marquise

Oval

Emerald

Heart

Trillion

Princess

Size in MM
0.0051.0
0.00671.15
0.00751.12
0.011.3
0.0151.5
0.021.7
0.0251.8
0.032.01.5 x 1.5
0.0352.12.5 x 1.25
0.042.23 x 1.51.75 x 1.75
0.052.4
0.062.53.5 x 1.752 x 2
0.072.73.5 x 22.25 x 2.25
0.082.8
0.092.93. x 2.54 x 2
0.103.03 x 3 x 32.5 x 2.5
0.113.14.25 x 2.25
0.123.24 x 2.53 x 3
0.143.34 x 34.5 x 2.53.5 x 3.5 x 3.52.75 x 2.75
0.153.45 x 2.5
0.163.54.5 x 3
0.173.63 x 3
0.183.74 x 4 x 4
0.203.85 x 35 x 34 x 33.5 x 3.53.25 x 3.25
0.223.9
0.234.03.5 x 3.5
0.254.16 x 35 x 35 x 34 x 44.5 x 4.5 x 4.5
0.304.25.5 x 3.56 x 3.53.75 x 3.75
0.334.45 x 5 x 5
0.384.67 x 3.55 x 44.5 x 4.54 x 4
0.404.85.5 x 5.5 x 5.5
0.475.0
0.505.26 x 48 x 46 x 46 x 45 x 56 x 6 x 6
0.605.4
0.655.65.5 x 5.5
0.755.87 x 59 x 4.56.5 x 4.56 x 6
0.806.0
0.956.4
1.006.58 x 510 x 57 x 57 x 56.5 x 6.5
1.106.6
1.176.8
1.257.07.5 x 5.5
1.337.2
1.507.49 x 611 x 5.58 x 68 x 67 x 77 x 7 x 7
1.607.6
1.757.8
1.908.0
2.008.210 x 712 x 68.5 x 6.58.5 x 6.58 x 88 x 8 x 8
2.158.4
2.258.6
2.508.812 x 713 x 6.59 x 79 x 78.5 x 8.59 x 9 x 9
2.859.2
3.009.412 x 814 x 710 x 810 x 89 x 910 x 10 x 10
3.159.6
3.359.8
3.5010.013 x 814 x 7.510 x 8.59.5 x 9.5
3.7510.2
4.0010.414 x 816 x 811 x 911 x 910 x 10
4.2510.6
4.5010.814.5 x 911 x 9.510.5 x 10.5
4.7511.0
5.0011.215 x 916 x 8.512 x 1012 x 1011 x 11