Find the carat size of your diamondDiamond Sizes
| Round Cut | | Oval Cut |
| Milimeters | Carat weight | Points | | Milimeters | Carat weight | Points |
| 1 | 0.005 | 0.5 | | 4 x 3 | 0.2 | 20 |
| 1.3 | 0.01 | 1 | | 5 x 3 | 0.25 | 25 |
| 1.5 | 0.015 | 1.5 | | 5 x 3.5 | 0.33 | 33 |
| 1.7 | 0.02 | 2 | | 5 x 4 | 0.4 | 40 |
| 1.8 | 0.025 | 2.5 | | 6 x 4 | 0.5 | 50 |
| 2 | 0.03 | 3 | | 6.5 x 4.5 | 0.65 | 65 |
| 2.1 | 0.035 | 3.5 | | 7 x 5 | 0.75 | 75 |
| 2.2 | 0.04 | 4 | | 7.5 x 5.5 | 1 | 100 |
| 2.4 | 0.05 | 5 | | 8 x 6 | 1.25 | 125 |
| 2.5 | 0.06 | 6 | | 8.5 x 6.5 | 1.5 | 150 |
| 2.7 | 0.07 | 7 | | 9 x 6 | 1.75 | 175 |
| 2.8 | 0.08 | 8 | | 9 x 7 | 2 | 200 |
| 2.9 | 0.09 | 9 | | 9.5 x 7.5 | 2.5 | 250 |
| 3 | 0.1 | 10 | | 10 x 8 | 3 | 300 |
| 3.1 | 0.11 | 11 | | 10 x 8.5 | 3.5 | 350 |
| 3.2 | 0.12 | 12 | | 11 x 9 | 4 | 400 |
| 3.3 | 0.14 | 14 | | 11 x 9.5 | 4.5 | 450 |
| 3.4 | 0.15 | 15 | | 12 x 10 | 5 | 500 |
| 3.5 | 0.16 | 16 | | | | |
| 3.6 | 0.17 | 17 | | | | |
| 3.7 | 0.18 | 18 | | Princess Cut |
| 3.8 | 0.2 | 20 | | Milimeters | Carat weight | Points |
| 3.9 | 0.22 | 22 | | 2 | 0.06 | 6 |
| 4 | 0.25 | 25 | | 2.25 | 0.08 | 8 |
| 4.2 | 0.3 | 30 | | 2.5 | 0.1 | 10 |
| 4.4 | 0.33 | 33 | | 2.75 | 0.13 | 13 |
| 4.5 | 0.35 | 35 | | 3 | 0.15 | 15 |
| 4.6 | 0.38 | 38 | | 3.25 | 0.2 | 20 |
| 4.8 | 0.4 | 40 | | 3.5 | 0.23 | 23 |
| 5 | 0.5 | 50 | | 3.75 | 0.25 | 25 |
| 5.4 | 0.6 | 60 | | 4 | 0.3 | 30 |
| 5.5 | 0.63 | 63 | | 4.42 | 0.35 | 35 |
| 5.6 | 0.65 | 65 | | 4.5 | 0.4 | 40 |
| 6 | 0.75 | 75 | | 4.75 | 0.5 | 50 |
| 6.4 | 0.95 | 95 | | 5 | 0.63 | 63 |
| 6.6 | 1 | 100 | | 5.25 | 0.75 | 75 |
| 6.8 | 1.17 | 117 | | 5.5 | 1 | 100 |
| 7 | 1.25 | 125 | | 6 | 1.25 | 125 |
| 7.2 | 1.33 | 133 | | 7 | 1.6 | 160 |
| 7.5 | 1.55 | 155 | | 8 | 2.25 | 225 |
| 7.8 | 1.75 | 175 | | | | |
| 8 | 2 | 200 | | | | |
| 8.4 | 2.15 | 215 | | | | |
| 8.6 | 2.25 | 225 | | | | |
| 9 | 2.75 | 275 | | | | |
| 9.4 | 3 | 300 | | | | |
| 9.6 | 3.15 | 315 | | | | |
| 9.8 | 3.35 | 335 | | | | |
| 10 | 3.5 | 350 | | Pear Cut |
| 10.2 | 3.75 | 375 | | Milimeters | Carat weight | Points |
| 10.4 | 4 | 400 | | 4 x 2 | 0.2 | 20 |
| 10.6 | 4.25 | 425 | | 5 x 3 | 0.3 | 30 |
| 10.8 | 4.5 | 450 | | 6 x 4 | 0.5 | 50 |
| 11 | 4.75 | 475 | | 7 x 5 | 0.75 | 75 |
| 11.2 | 5 | 500 | | 8 x 5 | 1 | 100 |
| 12 | 6.5 | 650 | | 9 x 6 | 1.5 | 150 |
| | | | | 10 x 7 | 2 | 200 |
| | | | | 12 x 7 | 2.5 | 250 |
| Marquise Cut | | 12 x 8 | 3 | 300 |
| Milimeters | Carat weight | Points | | 13 x 8 | 3.5 | 350 |
| 3.5 x 1.5 | 0.07 | 7 | | 14 x 8 | 4 | 400 |
| 4 x 2 | 0.1 | 10 | | 15 x 9 | 5 | 500 |
| 5 x 2 | 0.2 | 20 | | | | |
| 5 x 3 | 0.22 | 22 | | Emerald Cut | | |
| 5.5 x 2.5 | 0.25 | 25 | | Milimeters | Carat weight | Points |
| 6 x 3 | 0.3 | 30 | | 4 x 3 | 0.2 | 20 |
| 7 x 3 | 0.35 | 35 | | 5 x 3 | 0.25 | 25 |
| 7 x 3.5 | 0.38 | 38 | | 6 x4 | 0.5 | 50 |
| 7 x 4 | 0.4 | 40 | | 6.5 x 4.5 | 0.75 | 75 |
| 8 x 4 | 0.5 | 50 | | 7 x 5 | 1 | 100 |
| 8.5 x 4.5 | 0.65 | 65 | | 8 x 6 | 1.5 | 150 |
| 9 x 4 | 0.7 | 70 | | 8.5 x 6.5 | 2 | 200 |
| 9 x 4.5 | 0.75 | 75 | | 9 x 7 | 2.5 | 250 |
| 9 x 5 | 0.8 | 80 | | 10 x 8 | 3 | 300 |
| 9.5 x 4.5 | 0.85 | 85 | | 11 x 9 | 4 | 400 |
| 10 x 4.75 | 1 | 100 | | 12 x 10 | 5 | 500 |
| 10 x 5 | 1.25 | 125 | | | | |
| 11 x 5 | 1.5 | 150 | | | | |
| 11 x 5.5 | 1.65 | 165 | | | | |
| 12 x 6 | 2 | 200 | | | | |
| 13 x 5.5 | 2.5 | 250 | | | | |
| 13 x 6 | 2.65 | 265 | | | | |
| 14 x 6.5 | 2.87 | 287 | | | | |
| 14 x 7 | 3 | 300 | | | | |
| 15 x 7 | 3.75 | 375 | | | | |
| 16 x 8 | 4.5 | 450 | | | | |
| 18 x 9 | 7 | 700 | | | | |
| 20 x 10 | 10 | 1000 | | | | |
