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2.5ct Diamond (Cushion, 8.5×7.5mm, White) vs 3ct Diamond (Cushion, 8.8×7.9mm, White)


Quick summary: When looked from above (face-up position), 3ct Diamond (8.8×7.9mm, cushion cut) appears 9% larger than 2.5ct Diamond (8.5×7.5mm, cushion cut). See below how they compare side-by-side on a ring and finger.

2.5ct Diamond (cushion cut)
vs
3ct Diamond (cushion cut)
white
 
white
8.5×7.5 mm 8.8×7.9 mm
actual size
Actual size of 2.5ct Diamond (cushion cut, 8.5×7.5mm, White color)   Actual size of 3ct Diamond (cushion cut, 8.8×7.9mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 2.5ct Diamond (cushion cut, 8.5×7.5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 3ct Diamond (cushion cut, 8.8×7.9mm) 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
45% vs 47%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2.5ct Diamond Cushion (8.5×7.5mm, White) and 3ct Diamond Cushion (8.8×7.9mm, 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.


2.5 Ct Diamond (Cushion) 3 Ct Diamond (Cushion)
8.5×7.5 mm vs 8.8×7.9 mm
57.38 mm²   62.57 mm²
Face-up size outline for 3ct Diamond (8.8×7.9mm, cushion cut)
Face-up size outline for 2.5ct Diamond (8.5×7.5mm, cushion cut)
2.5ct Diamond Cushion (8.5×7.5mm)
3ct Diamond Cushion (8.8×7.9mm)
Difference: 9% (5.19 mm²)
3ct Diamond (Cushion, 8.8×7.9mm) has approx. 9% more face-up area than 2.5ct Diamond (Cushion, 8.5×7.5mm).


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