Wondering what a 1 carat Marquise diamond looks link on a hand? Our Marquise diamond size chart will help you convert millimeter (mm) size to carat size for Marquise cut diamonds.
Marquise Diamond Size Chart
Marquise Diamond Sizes
| Marquise MM Size |
Marquise Weight (ct) |
Black Diamond ct weight (Approx) |
|---|---|---|
| 3x1.5 mm. | 0.03 | 0.03 |
| 3.5x1.75 mm. | 0.07 | 0.08 |
| 3.5x2 mm. | 0.07 | 0.08 |
| 4x2 mm. | 0.10 | 0.12 |
| 3.75x1.75 mm. | 0.11 | 0.13 |
| 4.25x2.25 mm. | 0.12 | 0.14 |
| 5x2.5 mm. | 0.14 | 0.17 |
| 5.5x2.75 mm. | 0.16 | 0.19 |
| 5.5x3 mm. | 0.18 | 0.22 |
| 5x3 mm. | 0.20 | 0.24 |
| 6.5x3 mm. | 0.23 | 0.28 |
| 6x3 mm. | 0.25 | 0.30 |
| 7x3 mm. | 0.30 | 0.36 |
| 7.5x3.5 mm. | 0.33 | 0.40 |
| 7x4 mm. | 0.34 | 0.41 |
| 8x4 mm. | 0.50 | 0.65 |
| 8.75x4.25 mm. | 0.70 | 0.91 |
| 9x4.5 mm. | 0.75 | 1.00 |
| 9.5x4.7 mm. | 0.85 | 1.20 |
| 10x5 mm. | 1.00 | 1.40 |
| 11x5.5 mm. | 1.25 | 1.80 |
| 11.5x6 mm. | 1.33 | 1.90 |
| 12x6 mm. | 1.50 | 2.10 |
| 13x6.5 mm. | 2.00 | 2.80 |
| 14x7 mm. | 2.50 | 3.50 |
| 15x7 mm. | 3.00 | 4.20 |
| 14x8 mm. | 3.00 | 4.20 |
| 15x7.5 mm. | 3.25 | 4.60 |
| 15x8 mm. | 3.44 | 4.90 |
| 16x8 mm. | 3.86 | 5.50 |
| 16.5x8.25 mm. | 4.00 | 5.60 |
| 17x8.5 mm. | 4.88 | 6.90 |
| 17.5x10 mm. | 5.50 | 7.70 |
| 20x8 mm. | 7.08 | 10.00 |
| 20x10 mm. | 7.94 | 11.20 |
| 20x11 mm. | 9.50 | 13.30 |
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