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5ct Cubic Zirconia (Round, 9.23×9.23mm, White) vs 5ct Moissanite (Round, 11.47×11.47mm, White)


Quick summary: When looked from above (face-up position), 5ct Moissanite (11.47×11.47mm, round cut) appears 54% larger than 5ct Cubic Zirconia (9.23×9.23mm, round cut). See below how they compare side-by-side on a ring and finger.

5ct Cubic Zirconia (round cut)
vs
 5ct Moissanite (round cut)
white
 
white
9.23×9.23 mm 11.47×11.47 mm
actual size
Actual size of 5ct Cubic Zirconia (round cut, 9.23×9.23mm, White color)   Actual size of 5ct Moissanite (round cut, 11.47×11.47mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 5ct Cubic Zirconia (round cut, 9.23×9.23mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 5ct Moissanite (round cut, 11.47×11.47mm) 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
 55% vs 68%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Cubic Zirconia Round (9.23×9.23mm, White) and 5ct Moissanite Round (11.47×11.47mm, 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.


5 Ct Cubic Zirconia (Round) 5 Ct Moissanite (Round)
9.23×9.23 mm vs 11.47×11.47 mm
66.91 mm²   103.33 mm²
Face-up size outline for 5ct Moissanite (11.47×11.47mm, round cut)
Face-up size outline for 5ct Cubic Zirconia (9.23×9.23mm, round cut)
5ct Cubic Zirconia Round (9.23×9.23mm)
5ct Moissanite Round (11.47×11.47mm)
Difference: 54% (36.42 mm²)
5ct Moissanite (Round, 11.47×11.47mm) has approx. 54% more face-up area than 5ct Cubic Zirconia (Round, 9.23×9.23mm).


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