*Carat weights and stone counts are approximate for calibrated marquise brilliant cut diamonds. Actual weights may vary slightly based on length-to-width ratio, girdle thickness, and cutting proportions.
| Dimensions (mm) | Approx. Ct / Stone | Approx. Stones / Carat |
|---|---|---|
| 3.00 × 1.50 | 0.02 ct | 50 |
| 3.30 × 1.60 | 0.03 ct | 33 |
| 3.50 × 1.75 | 0.04 ct | 25 |
| 3.75 × 1.75 | 0.05 ct | 20 |
| 4.00 × 2.00 | 0.06 ct | 17 |
| 4.50 × 2.25 | 0.09 ct | 11 |
| 4.50 × 2.50 | 0.10 ct | 10 |
| 5.00 × 2.50 | 0.13 ct | 8 |
| 5.50 × 2.75 | 0.15 ct | 7 |
| 5.00 × 3.00 | 0.17 ct | 6 |
| 6.00 × 3.00 | 0.20 ct | 5 |
| 6.50 × 3.25 | 0.25 ct | 4 |
| 7.00 × 3.50 | 0.30 ct | 3 |
| 7.50 × 3.75 | 0.37 ct | 3 |
| 8.00 × 4.00 | 0.47 ct | 2 |
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