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1ct Moissanite (Emerald, 6.86×5.08mm, White) vs 1ct Cubic Zirconia (Emerald, 5.7×4.22mm, White)


Quick summary: When looked from above (face-up position), 1ct Moissanite (6.86×5.08mm, emerald cut) appears 45% larger than 1ct Cubic Zirconia (5.7×4.22mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1ct Moissanite (emerald cut)
vs
 1ct Cubic Zirconia (emerald cut)
white
 
white
6.86×5.08 mm 5.7×4.22 mm
actual size
Actual size of 1ct Moissanite (emerald cut, 6.86×5.08mm, White color)   Actual size of 1ct Cubic Zirconia (emerald cut, 5.7×4.22mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1ct Moissanite (emerald cut, 6.86×5.08mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1ct Cubic Zirconia (emerald cut, 5.7×4.22mm) 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
 31% vs 25%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Moissanite Emerald (6.86×5.08mm, White) and 1ct Cubic Zirconia Emerald (5.7×4.22mm, 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 Ct Moissanite (Emerald) 1 Ct Cubic Zirconia (Emerald)
6.86×5.08 mm vs 5.7×4.22 mm
32.41 mm²   22.37 mm²
Face-up size outline for 1ct Moissanite (6.86×5.08mm, emerald cut)
Face-up size outline for 1ct Cubic Zirconia (5.7×4.22mm, emerald cut)
1ct Moissanite Emerald (6.86×5.08mm)
1ct Cubic Zirconia Emerald (5.7×4.22mm)
Difference: 45% (10.04 mm²)
1ct Moissanite (Emerald, 6.86×5.08mm) has approx. 45% more face-up area than 1ct Cubic Zirconia (Emerald, 5.7×4.22mm).


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