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9ct Diamond (Trillion, 16.09×16.09mm, White) vs 9ct Cubic Zirconia (Trillion, 13.55×13.55mm, White)


Quick summary: When looked from above (face-up position), 9ct Diamond (16.09×16.09mm, trillion cut) appears 41% larger than 9ct Cubic Zirconia (13.55×13.55mm, trillion cut). See below how they compare side-by-side on a ring and finger.

9ct Diamond (trillion cut)
vs
 9ct Cubic Zirconia (trillion cut)
white
 
white
16.09×16.09 mm 13.55×13.55 mm
actual size
Actual size of 9ct Diamond (trillion cut, 16.09×16.09mm, White color)   Actual size of 9ct Cubic Zirconia (trillion cut, 13.55×13.55mm, 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 Diamond (trillion cut, 16.09×16.09mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 9ct Cubic Zirconia (trillion cut, 13.55×13.55mm) 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
 96% vs 81%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 9ct Diamond Trillion (16.09×16.09mm, White) and 9ct Cubic Zirconia Trillion (13.55×13.55mm, 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.


9 Ct Diamond (Trillion) 9 Ct Cubic Zirconia (Trillion)
16.09×16.09 mm vs 13.55×13.55 mm
160.51 mm²   113.83 mm²
Face-up size outline for 9ct Diamond (16.09×16.09mm, trillion cut)
Face-up size outline for 9ct Cubic Zirconia (13.55×13.55mm, trillion cut)
9ct Diamond Trillion (16.09×16.09mm)
9ct Cubic Zirconia Trillion (13.55×13.55mm)
Difference: 41% (46.68 mm²)
9ct Diamond (Trillion, 16.09×16.09mm) has approx. 41% more face-up area than 9ct Cubic Zirconia (Trillion, 13.55×13.55mm).


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