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0.25ct Moissanite (Cushion, 3.75×3.75mm, White) vs 0.25ct Cubic Zirconia (Cushion, 3.11×3.11mm, White)


Quick summary: When looked from above (face-up position), 0.25ct Moissanite (3.75×3.75mm, cushion cut) appears 46% larger than 0.25ct Cubic Zirconia (3.11×3.11mm, cushion cut). See below how they compare side-by-side on a ring and finger.

0.25ct Moissanite (cushion cut)
vs
0.25ct Cubic Zirconia (cushion cut)
white
 
white
3.75×3.75 mm 3.11×3.11 mm
actual size
Actual size of 0.25ct Moissanite (cushion cut, 3.75×3.75mm, White color)   Actual size of 0.25ct Cubic Zirconia (cushion cut, 3.11×3.11mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.25ct Moissanite (cushion cut, 3.75×3.75mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.25ct Cubic Zirconia (cushion cut, 3.11×3.11mm) 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
23% vs 19%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.25ct Moissanite Cushion (3.75×3.75mm, White) and 0.25ct Cubic Zirconia Cushion (3.11×3.11mm, 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

All things being equal, Cubic Zirconia will face-up smaller than Moissanite for a given carat weight, because it has higher specific gravity (5.65 vs. 3.22 - this means it's "heavier" compared to Moissanite of the same size). Face-up size also depends heavily on 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.


0.25 Ct Moissanite (Cushion) 0.25 Ct Cubic Zirconia (Cushion)
3.75×3.75 mm vs 3.11×3.11 mm
12.66 mm²   8.7 mm²
Face-up size outline for 0.25ct Moissanite (3.75×3.75mm, cushion cut)
Face-up size outline for 0.25ct Cubic Zirconia (3.11×3.11mm, cushion cut)
0.25ct Moissanite Cushion (3.75×3.75mm)
0.25ct Cubic Zirconia Cushion (3.11×3.11mm)
Difference: 46% (3.96 mm²)
0.25ct Moissanite (Cushion, 3.75×3.75mm) has approx. 46% more face-up area than 0.25ct Cubic Zirconia (Cushion, 3.11×3.11mm).


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