Wondering what a 1 carat Cushion diamond looks link on a hand? Our round diamond size chart will help you convert millimeter (mm) size to carat size for Cushion cut diamonds.
Cushion black diamond size chart
Cushion Diamond Sizes
| Cushion MM Size |
Cushion Weight (ct) |
Black Diamond ct weight (Approx) |
|---|---|---|
| 4.2 mm. | 0.40 | 0.52 |
| 4.9 mm. | 0.50 | 0.65 |
| 5.25 mm. | 0.75 | 1.00 |
| 5.5 mm. | 1.00 | 1.40 |
| 6 mm. | 1.25 | 1.80 |
| 6.5 mm. | 1.50 | 2.10 |
| 7 mm. | 2.00 | 2.80 |
| 7.5 mm. | 2.50 | 3.50 |
| Cushion MM Size |
Cushion Weight (ct) |
Black Diamond ct weight (Approx) |
|---|---|---|
| 8 mm. | 3.00 | 4.20 |
| 8.5 mm. | 3.50 | 4.90 |
| 9 mm. | 4.12 | 5.80 |
| 9.5 mm. | 5.09 | 7.20 |
| 10 mm. | 5.62 | 7.90 |
| 11 mm. | 7.44 | 10.50 |
| 12 mm. | 9.52 | 13.40 |
| 13 mm. | 12.66 | 17.80 |