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1.25ct Moissanite (Cushion, 6.41×6.41mm, White) vs 1.25ct Cubic Zirconia (Cushion, 5.31×5.31mm, White)


Quick summary: When looked from above (face-up position), 1.25ct Moissanite (6.41×6.41mm, cushion cut) appears 46% larger than 1.25ct Cubic Zirconia (5.31×5.31mm, cushion cut). See below how they compare side-by-side on a ring and finger.

1.25ct Moissanite (cushion cut)
vs
 1.25ct Cubic Zirconia (cushion cut)
white
 
white
6.41×6.41 mm 5.31×5.31 mm
actual size
Actual size of 1.25ct Moissanite (cushion cut, 6.41×6.41mm, White color)   Actual size of 1.25ct Cubic Zirconia (cushion cut, 5.31×5.31mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.25ct Moissanite (cushion cut, 6.41×6.41mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.25ct Cubic Zirconia (cushion cut, 5.31×5.31mm) 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
 38% vs 32%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.25ct Moissanite Cushion (6.41×6.41mm, White) and 1.25ct Cubic Zirconia Cushion (5.31×5.31mm, 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.


1.25 Ct Moissanite (Cushion) 1.25 Ct Cubic Zirconia (Cushion)
6.41×6.41 mm vs 5.31×5.31 mm
36.98 mm²   25.38 mm²
Face-up size outline for 1.25ct Moissanite (6.41×6.41mm, cushion cut)
Face-up size outline for 1.25ct Cubic Zirconia (5.31×5.31mm, cushion cut)
1.25ct Moissanite Cushion (6.41×6.41mm)
1.25ct Cubic Zirconia Cushion (5.31×5.31mm)
Difference: 46% (11.6 mm²)
1.25ct Moissanite (Cushion, 6.41×6.41mm) has approx. 46% more face-up area than 1.25ct Cubic Zirconia (Cushion, 5.31×5.31mm).


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