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Round Moissanite Conversion Chart
Hearts & Arrows Round Cut
| MM Width | Approximate Carat Weight |
|---|---|
| 4.0mm | 0.25ctw |
| 4.5mm | 0.33ctw |
| 5.0mm | 0.50ctw |
| 5.5mm | 0.65ctw |
| 6.0mm | 0.80ctw |
| 6.5mm | 1.00ctw |
| 7.0mm | 1.20ctw |
| 7.5mm | 1.50ctw |
| 8.0mm | 1.90ctw |
| 8.25mm | 2.00ctw |
| 8.5mm | 2.20ctw |
| 9.0mm | 2.75ctw |
| 9.5mm | 3.25ctw |
Old European Round Cut
| MM Width | Approximate Carat Weight |
|---|---|
| 5.0mm | 0.50ctw |
| 5.5mm | 0.60ctw |
| 6.0mm | 0.80ctw |
| 6.5mm | 1.00ctw |
| 7.0mm | 1.25ctw |
| 7.5mm | 1.60ctw |
| 8.0mm | 1.90ctw |
| 8.5mm | 2.40ctw |
| 9.0mm | 2.90ctw |
| 9.5mm | 3.50ctw |
| 10mm | 3.90ctw |
Round Rose Cut
| MM Width | Approximate Carat Weight |
|---|---|
| 6.5mm | 0.60ctw |
| 7.0mm | 0.85ctw |
| 7.5mm | 1.10ctw |
| 8.0mm | 1.40ctw |
| 8.5mm | 1.80ctw |
| 9mm | 2.00ctw |
Radiant Cut Moissanite Conversion Chart
| MM Width | Approximate Carat Weight |
|---|---|
| 7×5mm | 1.20ctw |
| 7.5×5mm | 1.30ctw |
| 8×5.5mm | 1.40ctw |
| 8×6mm | 1.80ctw |
| 8.5×6mm | 1.90ctw |
| 9×6.5mm | 2.40ctw |
| 9×7mm | 2.75ctw |
| 9.5×7mm | 2.90ctw |
| 10×7.5mm | 3.10ctw |
| 10×8mm | 3.90ctw |
| 11×8mm | 4.80ctw |
| 12×9mm | 6.00ctw |
Princess Cut Moissanite Conversion Chart
| MM Width | Approximate Carat Weight |
|---|---|
| 6×6mm | 1.20ctw |
| 6.5×6.5mm | 1.30ctw |
| 7×7mm | 1.90ctw |
| 7.5×7.5mm | 2.10ctw |
| 8×8mm | 2.25ctw |
Pear Cut Moissanite Conversion Chart
| MM Width | Approximate Carat Weight |
|---|---|
| 8×5mm | 1.00ctw |
| 9×6mm | 1.50ctw |
| 10×7mm | 2.10ctw |
| 11×7.5mm | 2.70ctw |
| 12×8mm | 3.20ctw |
| 13×9mm | 4.70ctw |
| 15×10mm | 6.60ctw |
Oval Cut Moissanite Conversion Chart
| MM Width | Approximate Carat Weight |
|---|---|
| 5×3mm | 0.30ctw |
| 6×4mm | 0.55ctw |
| 7×5mm | 0.90ctw |
| 8×5.5mm | 1.10ctw |
| 8×6mm | 1.40ctw |
| 8.5×6mm | 1.50ctw |
| 9×6mm | 1.80ctw |
| 9×6.5mm | 1.90ctw |
| 9×7mm | 2.00ctw |
| 9.5×7mm | 2.20ctw |
| 10×7mm | 2.30ctw |
| 10×7.5mm | 2.60ctw |
| 10×8mm | 3.00ctw |
| 10.5×8mm | 3.10ctw |
| 12×8mm | 3.50ctw |
| 14×10mm | 6.00ctw |
Marquise Cut Moissanite Conversion Chart
| MM Width | Approximate Carat Weight |
|---|---|
| 9×4.5mm | 0.75ctw |
| 10×5mm | 1.00ctw |
| 11×5.5mm | 1.30ctw |
| 12×6mm | 1.60ctw |
| 13×6.5mm | 2.10ctw |
| 14×7mm | 2.90ctw |
Emerald Cut Moissanite Conversion Chart
| MM Width | Approximate Carat Weight |
|---|---|
| 7×5mm | 1.00ctw |
| 7.5×5mm | 1.15ctw |
| 8×5.5mm | 1.35ctw |
| 8×6mm | 1.75ctw |
| 8.5×6mm | 1.80ctw |
| 9×6.5mm | 2.20ctw |
| 9×7mm | 2.50ctw |
| 9.5×7mm | 2.60ctw |
| 10×7.5mm | 3.10ctw |
| 10×8mm | 3.50ctw |
| 11×8mm | 4.10ctw |
| 11×9mm | 4.90ctw |
| 12×9mm | 6.00ctw |
