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
0.005 1.0
0.0067 1.15
0.0075 1.12
0.01 1.3
0.015 1.5
0.02 1.7
0.025 1.8
0.03 2.0 1.5 x 1.5
0.035 2.1 2.5 x 1.25
0.04 2.2 3 x 1.5 1.75 x 1.75
0.05 2.4
0.06 2.5 3.5 x 1.75 2 x 2
0.07 2.7 3.5 x 2 2.25 x 2.25
0.08 2.8
0.09 2.9 3. x 2.5 4 x 2
0.10 3.0 3 x 3 x 3 2.5 x 2.5
0.11 3.1 4.25 x 2.25
0.12 3.2 4 x 2.5 3 x 3
0.14 3.3 4 x 3 4.5 x 2.5 3.5 x 3.5 x 3.5 2.75 x 2.75
0.15 3.4 5 x 2.5
0.16 3.5 4.5 x 3
0.17 3.6 3 x 3
0.18 3.7 4 x 4 x 4
0.20 3.8 5 x 3 5 x 3 4 x 3 3.5 x 3.5 3.25 x 3.25
0.22 3.9
0.23 4.0 3.5 x 3.5
0.25 4.1 6 x 3 5 x 3 5 x 3 4 x 4 4.5 x 4.5 x 4.5
0.30 4.2 5.5 x 3.5 6 x 3.5 3.75 x 3.75
0.33 4.4 5 x 5 x 5
0.38 4.6 7 x 3.5 5 x 4 4.5 x 4.5 4 x 4
0.40 4.8 5.5 x 5.5 x 5.5
0.47 5.0
0.50 5.2 6 x 4 8 x 4 6 x 4 6 x 4 5 x 5 6 x 6 x 6
0.60 5.4
0.65 5.6 5.5 x 5.5
0.75 5.8 7 x 5 9 x 4.5 6.5 x 4.5 6 x 6
0.80 6.0
0.95 6.4
1.00 6.5 8 x 5 10 x 5 7 x 5 7 x 5 6.5 x 6.5
1.10 6.6
1.17 6.8
1.25 7.0 7.5 x 5.5
1.33 7.2
1.50 7.4 9 x 6 11 x 5.5 8 x 6 8 x 6 7 x 7 7 x 7 x 7
1.60 7.6
1.75 7.8
1.90 8.0
2.00 8.2 10 x 7 12 x 6 8.5 x 6.5 8.5 x 6.5 8 x 8 8 x 8 x 8
2.15 8.4
2.25 8.6
2.50 8.8 12 x 7 13 x 6.5 9 x 7 9 x 7 8.5 x 8.5 9 x 9 x 9
2.85 9.2
3.00 9.4 12 x 8 14 x 7 10 x 8 10 x 8 9 x 9 10 x 10 x 10
3.15 9.6
3.35 9.8
3.50 10.0 13 x 8 14 x 7.5 10 x 8.5 9.5 x 9.5
3.75 10.2
4.00 10.4 14 x 8 16 x 8 11 x 9 11 x 9 10 x 10
4.25 10.6
4.50 10.8 14.5 x 9 11 x 9.5 10.5 x 10.5
4.75 11.0
5.00 11.2 15 x 9 16 x 8.5 12 x 10 12 x 10 11 x 11
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