Diamond Size Chart - Oval
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Oval Cut Diamond Size Chart (MM)
The Oval cut diamond varies in length-to-width ratios like the Emerald cut diamond. The chart below compiles average conversions for the millimeter measurements and carat weight of oval cut diamonds.
Oval Diamond Sizes
| Oval MM Size | Oval Carat Weight |
|---|---|
| 4.5x3.5 mm. | 0.21 ct. |
| 5x3 mm. | 0.21 ct. |
| 5.5x3.5 mm. | 0.33 ct. |
| 5x4 mm. | 0.35 ct. |
| 6x4 mm. | 0.50 ct. |
| 6x5 mm. | 0.61 ct. |
| 6.5x4.5 mm. | 0.65 ct. |
| 7x5 mm. | 0.75 ct. |
| 7.7x5.7 mm. | 1.00 ct. |
| 8x6 mm. | 1.25 ct. |
| 9x6 mm. | 1.41 ct. |
| 8.5x6.5 mm. | 1.50 ct. |
| 9x7 mm. | 2.00 ct. |
| Oval MM Size | Oval Carat Weight |
|---|---|
| 10x8 mm. | 2.50 ct. |
| 10.5x8.5 mm. | 2.88 ct. |
| 12x8 mm. | 3.00 ct. |
| 11x9 mm. | 3.85 ct. |
| 12x10 mm. | 5.05 ct. |
| 14x10 mm. | 5.81 ct. |
| 13x11 mm. | 6.05 ct. |
| 14x12 mm. | 8.21 ct. |
| 15x12 mm. | 8.76 ct. |
| 16x12 mm. | 9.32 ct. |
| 16x14 mm. | 11.88 ct. |
| 18x13 mm. | 12.86 ct. |
| 20x15 mm. | 14.96 ct. |
