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40ct Cubic Zirconia (Pear, 25.93×15.62mm, White) vs 40ct Moissanite (Pear, 31.26×18.83mm, White)


Quick summary: When looked from above (face-up position), 40ct Moissanite (31.26×18.83mm, pear cut) appears 45% larger than 40ct Cubic Zirconia (25.93×15.62mm, pear cut). See below how they compare side-by-side on a ring and finger.

40ct Cubic Zirconia (pear cut)
vs
40ct Moissanite (pear cut)
white
 
white
25.93×15.62 mm 31.26×18.83 mm
actual size
Actual size of 40ct Cubic Zirconia (pear cut, 25.93×15.62mm, White color)   Actual size of 40ct Moissanite (pear cut, 31.26×18.83mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 40ct Cubic Zirconia (pear cut, 25.93×15.62mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 40ct Moissanite (pear cut, 31.26×18.83mm) 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
93% vs 112%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Cubic Zirconia Pear (25.93×15.62mm, White) and 40ct Moissanite Pear (31.26×18.83mm, 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.


40 Ct Cubic Zirconia (Pear) 40 Ct Moissanite (Pear)
25.93×15.62 mm vs 31.26×18.83 mm
295.67 mm²   429.7 mm²
Face-up size outline for 40ct Moissanite (31.26×18.83mm, pear cut)
Face-up size outline for 40ct Cubic Zirconia (25.93×15.62mm, pear cut)
40ct Cubic Zirconia Pear (25.93×15.62mm)
40ct Moissanite Pear (31.26×18.83mm)
Difference: 45% (134.03 mm²)
40ct Moissanite (Pear, 31.26×18.83mm) has approx. 45% more face-up area than 40ct Cubic Zirconia (Pear, 25.93×15.62mm).


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