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10ct Diamond (Round, 14×14mm, White) vs 10ct Cubic Zirconia (Round, 11.62×11.62mm, White)


Quick summary: When looked from above (face-up position), 10ct Diamond (14×14mm, round cut) appears 45% larger than 10ct Cubic Zirconia (11.62×11.62mm, round cut). See below how they compare side-by-side on a ring and finger.

10ct Diamond (round cut)
vs
 10ct Cubic Zirconia (round cut)
white
 
white
14×14 mm 11.62×11.62 mm
actual size
Actual size of 10ct Diamond (round cut, 14×14mm, White color)   Actual size of 10ct Cubic Zirconia (round cut, 11.62×11.62mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 10ct Diamond (round cut, 14×14mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 10ct Cubic Zirconia (round cut, 11.62×11.62mm) 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
 83% vs 69%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Diamond Round (14×14mm, White) and 10ct Cubic Zirconia Round (11.62×11.62mm, 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.


10 Ct Diamond (Round) 10 Ct Cubic Zirconia (Round)
14×14 mm vs 11.62×11.62 mm
153.94 mm²   106.05 mm²
Face-up size outline for 10ct Diamond (14×14mm, round cut)
Face-up size outline for 10ct Cubic Zirconia (11.62×11.62mm, round cut)
10ct Diamond Round (14×14mm)
10ct Cubic Zirconia Round (11.62×11.62mm)
Difference: 45% (47.89 mm²)
10ct Diamond (Round, 14×14mm) has approx. 45% more face-up area than 10ct Cubic Zirconia (Round, 11.62×11.62mm).


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