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7ct Diamond (Emerald, 12.78×9.47mm, White) vs 4.25ct Diamond (Round, 10.53×10.53mm, White)


Quick summary: When looked from above (face-up position), 7ct Diamond (12.78×9.47mm, emerald cut) appears 29% larger than 4.25ct Diamond (10.53×10.53mm, round cut). See below how they compare side-by-side on a ring and finger.

7ct Diamond (emerald cut)
vs
 4.25ct Diamond (round cut)
white
 
white
12.78×9.47 mm 10.53×10.53 mm
actual size
Actual size of 7ct Diamond (emerald cut, 12.78×9.47mm, White color)   Actual size of 4.25ct Diamond (round cut, 10.53×10.53mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 7ct Diamond (emerald cut, 12.78×9.47mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 4.25ct Diamond (round cut, 10.53×10.53mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 57% vs 63%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 7ct Diamond Emerald (12.78×9.47mm, White) and 4.25ct Diamond Round (10.53×10.53mm, White) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Face-up Size

The face-up size depends on the shape of the gem, its weight and the proportions of the cut. Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


7 Ct Diamond (Emerald) 4.25 Ct Diamond (Round)
12.78×9.47 mm vs 10.53×10.53 mm
112.55 mm²   87.09 mm²
Face-up size outline for 7ct Diamond (12.78×9.47mm, emerald cut)
Face-up size outline for 4.25ct Diamond (10.53×10.53mm, round cut)
7ct Diamond Emerald (12.78×9.47mm)
4.25ct Diamond Round (10.53×10.53mm)
Difference: 29% (25.46 mm²)
7ct Diamond (Emerald, 12.78×9.47mm) has approx. 29% more face-up area than 4.25ct Diamond (Round, 10.53×10.53mm).


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