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7ct Diamond (Round, 12.43×12.43mm, White) vs 10ct Diamond (Cushion, 12.55×12.55mm, White)


Quick summary: When looked from above (face-up position), 10ct Diamond (12.55×12.55mm, cushion cut) appears 17% larger than 7ct Diamond (12.43×12.43mm, round cut). See below how they compare side-by-side on a ring and finger.

7ct Diamond (round cut)
vs
 10ct Diamond (cushion cut)
white
 
white
12.43×12.43 mm 12.55×12.55 mm
actual size
Actual size of 7ct Diamond (round cut, 12.43×12.43mm, White color)   Actual size of 10ct Diamond (cushion cut, 12.55×12.55mm, 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 (round cut, 12.43×12.43mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 10ct Diamond (cushion cut, 12.55×12.55mm) 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
 74% vs 75%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 7ct Diamond Round (12.43×12.43mm, White) and 10ct Diamond Cushion (12.55×12.55mm, 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 (Round) 10 Ct Diamond (Cushion)
12.43×12.43 mm vs 12.55×12.55 mm
121.35 mm²   141.75 mm²
Face-up size outline for 10ct Diamond (12.55×12.55mm, cushion cut)
Face-up size outline for 7ct Diamond (12.43×12.43mm, round cut)
7ct Diamond Round (12.43×12.43mm)
10ct Diamond Cushion (12.55×12.55mm)
Difference: 17% (20.4 mm²)
10ct Diamond (Cushion, 12.55×12.55mm) has approx. 17% more face-up area than 7ct Diamond (Round, 12.43×12.43mm).


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