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3.5ct Cubic Zirconia (Radiant, 7.46×7.46mm, White) vs 3.5ct Moissanite (Radiant, 8.99×8.99mm, White)


Quick summary: When looked from above (face-up position), 3.5ct Moissanite (8.99×8.99mm, radiant cut) appears 45% larger than 3.5ct Cubic Zirconia (7.46×7.46mm, radiant cut). See below how they compare side-by-side on a ring and finger.

3.5ct Cubic Zirconia (radiant cut)
vs
3.5ct Moissanite (radiant cut)
white
 
white
7.46×7.46 mm 8.99×8.99 mm
actual size
Actual size of 3.5ct Cubic Zirconia (radiant cut, 7.46×7.46mm, White color)   Actual size of 3.5ct Moissanite (radiant cut, 8.99×8.99mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 3.5ct Cubic Zirconia (radiant cut, 7.46×7.46mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 3.5ct Moissanite (radiant cut, 8.99×8.99mm) 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 54%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 3.5ct Cubic Zirconia Radiant (7.46×7.46mm, White) and 3.5ct Moissanite Radiant (8.99×8.99mm, 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.


3.5 Ct Cubic Zirconia (Radiant) 3.5 Ct Moissanite (Radiant)
7.46×7.46 mm vs 8.99×8.99 mm
52.87 mm²   76.78 mm²
Face-up size outline for 3.5ct Moissanite (8.99×8.99mm, radiant cut)
Face-up size outline for 3.5ct Cubic Zirconia (7.46×7.46mm, radiant cut)
3.5ct Cubic Zirconia Radiant (7.46×7.46mm)
3.5ct Moissanite Radiant (8.99×8.99mm)
Difference: 45% (23.91 mm²)
3.5ct Moissanite (Radiant, 8.99×8.99mm) has approx. 45% more face-up area than 3.5ct Cubic Zirconia (Radiant, 7.46×7.46mm).


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