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5ct Diamond (Oval, 13.88×9.25mm, White) vs 5ct Cubic Zirconia (Oval, 11.69×7.79mm, White)


Quick summary: When looked from above (face-up position), 5ct Diamond (13.88×9.25mm, oval cut) appears 41% larger than 5ct Cubic Zirconia (11.69×7.79mm, oval cut). See below how they compare side-by-side on a ring and finger.

5ct Diamond (oval cut)
vs
5ct Cubic Zirconia (oval cut)
white
 
white
13.88×9.25 mm 11.69×7.79 mm
actual size
Actual size of 5ct Diamond (oval cut, 13.88×9.25mm, White color)   Actual size of 5ct Cubic Zirconia (oval cut, 11.69×7.79mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 5ct Diamond (oval cut, 13.88×9.25mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 5ct Cubic Zirconia (oval cut, 11.69×7.79mm) 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
55% vs 47%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Diamond Oval (13.88×9.25mm, White) and 5ct Cubic Zirconia Oval (11.69×7.79mm, 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 Ct Diamond (Oval) 5 Ct Cubic Zirconia (Oval)
13.88×9.25 mm vs 11.69×7.79 mm
105.28 mm²   74.67 mm²
Face-up size outline for 5ct Diamond (13.88×9.25mm, oval cut)
Face-up size outline for 5ct Cubic Zirconia (11.69×7.79mm, oval cut)
5ct Diamond Oval (13.88×9.25mm)
5ct Cubic Zirconia Oval (11.69×7.79mm)
Difference: 41% (30.61 mm²)
5ct Diamond (Oval, 13.88×9.25mm) has approx. 41% more face-up area than 5ct Cubic Zirconia (Oval, 11.69×7.79mm).


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