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3ct Cubic Zirconia (Heart, 8.04×8.04mm, White) vs 3ct Moissanite (Heart, 9.7×9.7mm, White)


Quick summary: When looked from above (face-up position), 3ct Moissanite (9.7×9.7mm, heart cut) appears 46% larger than 3ct Cubic Zirconia (8.04×8.04mm, heart cut). See below how they compare side-by-side on a ring and finger.

3ct Cubic Zirconia (heart cut)
vs
3ct Moissanite (heart cut)
white
 
white
8.04×8.04 mm 9.7×9.7 mm
actual size
Actual size of 3ct Cubic Zirconia (heart cut, 8.04×8.04mm, White color)   Actual size of 3ct Moissanite (heart cut, 9.7×9.7mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 3ct Cubic Zirconia (heart cut, 8.04×8.04mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 3ct Moissanite (heart cut, 9.7×9.7mm) 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
48% vs 58%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Cubic Zirconia Heart (8.04×8.04mm, White) and 3ct Moissanite Heart (9.7×9.7mm, 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.


3 Ct Cubic Zirconia (Heart) 3 Ct Moissanite (Heart)
8.04×8.04 mm vs 9.7×9.7 mm
46.54 mm²   67.74 mm²
Face-up size outline for 3ct Moissanite (9.7×9.7mm, heart cut)
Face-up size outline for 3ct Cubic Zirconia (8.04×8.04mm, heart cut)
3ct Cubic Zirconia Heart (8.04×8.04mm)
3ct Moissanite Heart (9.7×9.7mm)
Difference: 46% (21.2 mm²)
3ct Moissanite (Heart, 9.7×9.7mm) has approx. 46% more face-up area than 3ct Cubic Zirconia (Heart, 8.04×8.04mm).


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