Wondering what a 1 carat princess black diamond looks link on a hand? Our princess diamond size chart will help you convert millimeter (mm) size to carat size for princess cut diamonds.
Princess Diamond Sizes
| Princess MM Size | Princess Weight (ct) | Black Diamond ct weight (Approx) |
|---|---|---|
| 1.5 mm. | 0.02 | 0.02 |
| 1.75 mm. | 0.03 | 0.04 |
| 2 mm. | 0.06 | 0.07 |
| 2.25 mm. | 0.08 | 0.10 |
| 2.5 mm. | 0.10 | 0.12 |
| 2.75 mm. | 0.13 | 0.16 |
| 3 mm. | 0.18 | 0.22 |
| 3.25 mm. | 0.26 | 0.31 |
| 3.5 mm. | 0.29 | 0.35 |
| 3.75 mm. | 0.31 | 0.37 |
| 4 mm. | 0.39 | 0.51 |
| 4.25 mm. | 0.44 | 0.57 |
| 4.5 mm. | 0.50 | 0.65 |
| 4.75 mm. | 0.64 | 0.83 |
| 5 mm. | 0.75 | 0.98 |
| 5.25 mm. | 0.90 | 1.30 |
| 5.5 mm. | 1.00 | 1.40 |
| 5.75 mm. | 1.11 | 1.50 |
| 6 mm. | 1.25 | 1.70 |
| 6.25 mm. | 1.39 | 1.90 |
| Princess MM Size | Princess Weight (ct) | Black Diamond ct weight (Approx) |
|---|---|---|
| 6.5 mm. | 1.50 | 2.10 |
| 6.75 mm. | 1.75 | 2.50 |
| 7 mm. | 2.00 | 2.80 |
| 7.25 mm. | 2.01 | 2.90 |
| 7.5 mm. | 2.50 | 3.50 |
| 7.75 mm. | 2.74 | 3.90 |
| 8 mm. | 3.00 | 4.20 |
| 8.25 mm. | 3.24 | 4.60 |
| 8.5 mm. | 3.67 | 5.20 |
| 8.75 mm. | 4.10 | 5.80 |
| 9 mm. | 4.12 | 5.80 |
| 9.5 mm. | 5.09 | 7.20 |
| 9.75 mm. | 5.36 | 7.60 |
| 10 mm. | 5.62 | 7.90 |
| 10.25 mm. | 5.76 | 8.10 |
| 10.5 mm. | 5.99 | 8.40 |
| 11 mm. | 7.44 | 10.50 |
| 11.5 mm. | 9.44 | 13.30 |
| 12 mm. | 9.52 | 13.40 |
