This
chart tells you diamond size and its relationship to carat. It only applies
to round cut diamonds but can give an approximate indication for other cuts
of diamond such as rose cut, old mine cut, single cut and european cut.
We hope you find this diamond carat chart useful If you have any other information about diamonds that you would like us to add to this page, please let us know.
| Diamond Size | Carat equivalent |
| 1.0 mm Diamond |
.005 carat |
| 1.2 mm Diamond |
.008 carat |
| 1.3 mm Diamond |
.01 carat |
| 1.5 mm Diamond |
.015 carat |
| 1.7 mm Diamond |
.02 carat |
| 1.8 mm Diamond |
.025 carat |
| 2.0 mm Diamond |
.03 carat |
| 2.1 mm Diamond |
.035 carat |
| 2.2 mm Diamond |
.04 carat |
| 2.4 mm Diamond |
.05 carat |
| 2.5 mm Diamond |
.06 carat |
| 2.7 mm Diamond |
.07 carat |
| 2.8 mm Diamond |
.08 carat |
| 2.9 mm Diamond |
.09 carat |
| 3.0 mm Diamond |
1/10 carat |
| 3.1 mm Diamond |
.11 carat |
| 3.2 mm Diamond |
.12 carat |
| 3.3 mm Diamond |
.14 carat |
| 3.4 mm Diamond |
.15 carat |
| 3.5 mm Diamond |
.16 carat |
| 3.6 mm Diamond |
.17 carat |
| 3.7 mm Diamond |
.18 carat |
| 3.8 mm Diamond |
1/5 carat |
| 3.9 mm Diamond |
.22 carat |
| 4.0 mm Diamond |
.23 carat |
| 4.1 mm Diamond |
1/4 carat |
| 4.2 mm Diamond |
.30 carat |
| 4.4 mm Diamond |
.33 carat |
| 4.5 mm Diamond |
.35 carat |
| 4.6 mm Diamond |
1/3 carat |
| 4.8 mm Diamond |
.40 carat |
| 4.9 mm Diamond |
.43 carat |
| 5.0 mm Diamond |
.47 carat |
| 5.2 mm Diamond |
1/2 carat |
| 5.4 mm Diamond |
.60 carat |
| 5.5 mm Diamond |
.63 carat |
| 5.6 mm Diamond |
.65 carat |
| 5.8 mm Diamond |
3/4 carat |
| 6.0 mm Diamond |
.80 carat |
| 6.2 mm Diamond |
.85 carat |
| 6.4 mm Diamond |
.95 carat |
| 6.5 mm Diamond |
1.00 carat |
| 6.6 mm Diamond |
1.10 carat |
| 6.8 mm Diamond |
1.17 carat |
| 7.0 mm Diamond |
1-1/4 carat |
| 7.2 mm Diamond |
1.33 carat |
| 7.4 mm Diamond |
1-1/2 carat |
| 7.6 mm Diamond |
1.60 carat |
| 7.8 mm Diamond |
1.75 carat |
| 8.0 mm Diamond |
1.90 carat |
| 8.2 mm Diamond |
2.00 carat |
| 8.4 mm Diamond |
2.15 carat |
| 8.6 mm Diamond |
2.25 carat |
| 8.8 mm Diamond |
2.50 carat |
| 9.0 mm Diamond |
2.65 carat |
| 9.2 mm Diamond |
2.85 carat |
| 9.4 mm Diamond |
3.00 carat |
| 9.6 mm Diamond |
3.15 carat |
| 9.8 mm Diamond |
3.35 carat |
| 10.0 mm Diamond |
3-1/2 carat |
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