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9ct Cubic Zirconia (Cabochon, 12.69×8.46mm, White) vs 9ct Moissanite (Cabochon, 15.3×10.2mm, White)


Quick summary: When looked from above (face-up position), 9ct Moissanite (15.3×10.2mm, cabochon cut) appears 45% larger than 9ct Cubic Zirconia (12.69×8.46mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

9ct Cubic Zirconia (cabochon cut)
vs
9ct Moissanite (cabochon cut)
white
 
white
12.69×8.46 mm 15.3×10.2 mm
actual size
Actual size of 9ct Cubic Zirconia (cabochon cut, 12.69×8.46mm, White color)   Actual size of 9ct Moissanite (cabochon cut, 15.3×10.2mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 9ct Cubic Zirconia (cabochon cut, 12.69×8.46mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 9ct Moissanite (cabochon cut, 15.3×10.2mm) 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
51% vs 61%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 9ct Cubic Zirconia Cabochon (12.69×8.46mm, White) and 9ct Moissanite Cabochon (15.3×10.2mm, 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.


9 Ct Cubic Zirconia (Cabochon) 9 Ct Moissanite (Cabochon)
12.69×8.46 mm vs 15.3×10.2 mm
88.03 mm²   127.97 mm²
Face-up size outline for 9ct Moissanite (15.3×10.2mm, cabochon cut)
Face-up size outline for 9ct Cubic Zirconia (12.69×8.46mm, cabochon cut)
9ct Cubic Zirconia Cabochon (12.69×8.46mm)
9ct Moissanite Cabochon (15.3×10.2mm)
Difference: 45% (39.94 mm²)
9ct Moissanite (Cabochon, 15.3×10.2mm) has approx. 45% more face-up area than 9ct Cubic Zirconia (Cabochon, 12.69×8.46mm).


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