diameter Ø in mm. |
weight in carat |
| 1.25 | 0.01 |
| 1.7 | 0.02 |
| 2.0 | 0.03 |
| 2.2 | 0.042 |
| 2.4 | 0.05 |
| 2.6 | 0.06 |
| 2.8 | 0.079 |
| 2.9 | 0.09 |
| 3.0 | 0.103 |
| 3.2 | 0.13 |
| 3.4 | 0.14 |
| 3.5 | 0.16 |
| 3.6 | 0.18 |
| 3.7 | 0.19 |
| 3.8 | 0.207 |
| 3.9 | 0.22 |
| 4.0 | 0.25 |
| 4.1 | 0.26 |
| 4.4 | 0.30 |
| 4.8 | 0.42 |
| 5.1 | 0.50 |
| 5.5 | 0.63 |
| 5.9 | 0.75 |
| 6.5 | 1.00 |
| 7.0 | 1.25 |
| 7.4 | 1.50 |
| 7.8 | 1.75 |
| 8.2 | 2.00 |
| 8.8 | 2.50 |
| 9.3 | 3.00 |
| 10.3 | 4.00 |
| 11.1 | 5.00 |
| 11.8 | 6.00 |
| 12.4 | 7.00 |
| 13 | 8.00 |
| 13.5 | 9.00 |
| 14 | 10.00 |