Round Diamond MM to Carat Conversion Chart
| MM Size | Carat Weight |
| 0.8 | 0.0025 |
| 1 | 0.005 |
| 1.10 | 0.0075 |
| 1.15 | 0.0067 |
| 1.25 | 0.01 |
| 1.3 | 0.01 |
| 1.5 | 0.015 |
| 1.75 | 0.02 |
| 1.8 | 0.025 |
| 2 | 0.03 |
| 2.25 | 0.04 |
| 2.5 | 0.06 |
| 2.75 | 0.08 |
| 3 | 0.11 |
| 3.25 | 0.14 |
| 3.5 | 0.17 |
| 3.75 | 0.21 |
| 4 | 0.25 |
| 4.25 | 0.28 |
| 4.5 | 0.36 |
| 4.75 | 0.44 |
| 5 | 0.46 |
| 5.25 | 0.56 |
| 5.5 | 0.66 |
| 5.75 | 0.76 |
| 6 | 0.84 |
| 6.25 | 0.93 |
| 6.5 | 1.03 |
| 6.75 | 1.24 |
| MM Size | Carat Weight |
| 7 | 1.28 |
| 7.25 | 1.49 |
| 7.5 | 1.67 |
| 7.75 | 1.75 |
| 8 | 2.04 |
| 8.25 | 2.11 |
| 8.5 | 2.43 |
| 8.75 | 2.55 |
| 9 | 2.75 |
| 9.25 | 3.05 |
| 9.5 | 3.35 |
| 9.75 | 3.61 |
| 10 | 3.87 |
| 10.25 | 4.16 |
| 10.5 | 4.41 |
| 10.75 | 4.57 |
| 11 | 4.91 |
| 11.25 | 5.49 |
| 11.5 | 5.85 |
| 12 | 6.84 |
| 12.25 | 7.26 |
| 12.5 | 7.36 |
| 12.75 | 7.52 |
| 13 | 8.51 |
| 13.5 | 9.53 |
| 14 | 10.49 |
| 15 | 12.89 |
| 16 | 16.06 |