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5.5ct Diamond (Oval, 14.33×9.55mm, White) vs 5.5ct Cubic Zirconia (Oval, 12.06×8.04mm, White)


Quick summary: When looked from above (face-up position), 5.5ct Diamond (14.33×9.55mm, oval cut) appears 41% larger than 5.5ct Cubic Zirconia (12.06×8.04mm, oval cut). See below how they compare side-by-side on a ring and finger.

5.5ct Diamond (oval cut)
vs
 5.5ct Cubic Zirconia (oval cut)
white
 
white
14.33×9.55 mm 12.06×8.04 mm
actual size
Actual size of 5.5ct Diamond (oval cut, 14.33×9.55mm, White color)   Actual size of 5.5ct Cubic Zirconia (oval cut, 12.06×8.04mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 5.5ct Diamond (oval cut, 14.33×9.55mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 5.5ct Cubic Zirconia (oval cut, 12.06×8.04mm) 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
 57% vs 48%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5.5ct Diamond Oval (14.33×9.55mm, White) and 5.5ct Cubic Zirconia Oval (12.06×8.04mm, 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 Diamond for a given carat weight, because it has higher specific gravity (5.65 vs. 3.52 - this means it's "heavier" compared to Diamond 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.


5.5 Ct Diamond (Oval) 5.5 Ct Cubic Zirconia (Oval)
14.33×9.55 mm vs 12.06×8.04 mm
112.22 mm²   79.51 mm²
Face-up size outline for 5.5ct Diamond (14.33×9.55mm, oval cut)
Face-up size outline for 5.5ct Cubic Zirconia (12.06×8.04mm, oval cut)
5.5ct Diamond Oval (14.33×9.55mm)
5.5ct Cubic Zirconia Oval (12.06×8.04mm)
Difference: 41% (32.71 mm²)
5.5ct Diamond (Oval, 14.33×9.55mm) has approx. 41% more face-up area than 5.5ct Cubic Zirconia (Oval, 12.06×8.04mm).


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