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Diamond Size Comparison
1ct Round vs 1ct Princess
Compare the real size of a 1ct Round and a 1ct Princess, sized to scale on a ring and finger and calibrated to your screen. Adjust either stone below to explore other combinations.
Stone A
1 ct
0.25 ct3 ct
Stone B
1 ct
0.25 ct3 ct
Ring size6½
Band width2.2 mm
Metal
Overall, 1ct Round is 40% larger than 1ct Princess when looked at from above.
Actual size
1ct Round
Actual size
1ct Princess
| Attribute | 1ct Round | 1ct Princess |
|---|---|---|
| Shape | Round | Princess |
| Weight | 1 ct | 1 ct |
| Measurements | 6.5×6.5×3.9 mm | 5.5×5.5×3.6 mm |
| Total depth % | 60% | 65.5% |
| Length / width ratio | 1 | 1 |
| Face-up area | 33.18 mm² | 23.76 mm² |
| Face-up area per carat | 33.18 mm²/ct | 23.76 mm²/ct |
| Approx. volume | 86.28 mm³ | 57.02 mm³ |
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1ct Round vs 1ct Princess at a glance
1ct Round has approximately 40% more face-up area than 1ct Princess.
| Attribute | 1ct Round | 1ct Princess |
|---|---|---|
| Shape | Round | Princess |
| Weight | 1 ct | 1 ct |
| Measurements | 6.5×6.5×3.9 mm | 5.5×5.5×3.6 mm |
| Total depth % | 60% | 65.5% |
| Length / width ratio | 1 | 1 |
| Face-up area | 33.18 mm² | 23.76 mm² |
| Face-up area per carat | 33.18 mm²/ct | 23.76 mm²/ct |
| Approx. volume | 86.28 mm³ | 57.02 mm³ |
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