Princess Diamond Size Chart
| Length × Width (mm) |
Size (Carats) |
Diamonds per Carat |
| 1.10 × 1.10 mm | 0.015 ct | 67 |
| 1.20 × 1.20 mm | 0.02 ct | 50 |
| 1.40 × 1.40 mm | 0.025 ct | 40 |
| 1.50 × 1.50 mm | 0.03 ct | 33 |
| 1.70 × 1.70 mm | 0.035 ct | 29 |
| 1.80 × 1.80 mm | 0.04 ct | 25 |
| 1.90 × 1.90 mm | 0.05 ct | 20 |
| 2.00 × 2.00 mm | 0.06 ct | 17 |
| 2.20 × 2.20 mm | 0.07 ct | 14 |
| 2.30 × 2.30 mm | 0.08 ct | 13 |
| 2.40 × 2.40 mm | 0.09 ct | 11 |
| 2.50 × 2.50 mm | 0.10 ct | 10 |
| 2.80 × 2.80 mm | 0.14 ct | 7 |
| 3.00 × 3.00 mm | 0.16 ct | 6 |
| 3.20 × 3.20 mm | 0.20 ct | 5 |
| 3.40 × 3.40 mm | 0.24 ct | 4.17 |
| 3.50 × 3.50 mm | 0.25 ct | 4 |
| 3.70 × 3.70 mm | 0.30 ct | 3 |
| 3.80 × 3.80 mm | 0.37 ct | 2.70 |
| 4.00 × 4.00 mm | 0.40 ct | 2.50 |
| 4.50 × 4.50 mm | 0.50 ct | 2 |
| 4.70 × 4.70 mm | 0.60 ct | 1.67 |
| 5.00 × 5.00 mm | 0.75 ct | 1.33 |
| 5.50 × 5.50 mm | 1 ct | 1 |
| 6.00 × 6.00 mm | 1.25 ct | 0.80 |
| 6.50 × 6.50 mm | 1.50 ct | 0.67 |
| 7.00 × 7.00 mm | 1.60 ct | 0.63 |
| 7.25 × 7.25 mm | 2 ct | 0.50 |
| 8.00 × 8.00 mm | 3 ct | 0.33 |
| 8.75 × 8.75 mm | 4 ct | 0.25 |
| 9.50 × 9.50 mm | 5 ct | 0.20 |