Stone Size Equivalents - Heart
| Heart Stone Size | Approximate Carat Equivalent |
| 6 x 6 mm | 0.75 |
| 6 x 7 mm | 1 |
| 6.5 x 7.5 mm | 1.3 |
| 7 x 8 mm | 1.5 |
| 8 x 9 mm | 2.3 |
| 8.5 x 9.5 mm | 2.75 |
| 9.5 x 9.5 | 3 |
| 9 x 10 mm | 3.25 |
| 10 x 10 mm | 3.5 |
| Heart Stone Size | Approximate Carat Equivalent |
| 6 x 6 mm | 0.75 |
| 6 x 7 mm | 1 |
| 6.5 x 7.5 mm | 1.3 |
| 7 x 8 mm | 1.5 |
| 8 x 9 mm | 2.3 |
| 8.5 x 9.5 mm | 2.75 |
| 9.5 x 9.5 | 3 |
| 9 x 10 mm | 3.25 |
| 10 x 10 mm | 3.5 |