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1ct Cubic Zirconia (Trillion, 6.52×6.52mm, White) vs 1ct Diamond (Trillion, 7.74×7.74mm, White)


Quick summary: When looked from above (face-up position), 1ct Diamond (7.74×7.74mm, trillion cut) appears 41% larger than 1ct Cubic Zirconia (6.52×6.52mm, trillion cut). See below how they compare side-by-side on a ring and finger.

1ct Cubic Zirconia (trillion cut)
vs
1ct Diamond (trillion cut)
white
 
white
6.52×6.52 mm 7.74×7.74 mm
actual size
Actual size of 1ct Cubic Zirconia (trillion cut, 6.52×6.52mm, White color)   Actual size of 1ct Diamond (trillion cut, 7.74×7.74mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1ct Cubic Zirconia (trillion cut, 6.52×6.52mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1ct Diamond (trillion cut, 7.74×7.74mm) 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
39% vs 46%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Cubic Zirconia Trillion (6.52×6.52mm, White) and 1ct Diamond Trillion (7.74×7.74mm, 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.


1 Ct Cubic Zirconia (Trillion) 1 Ct Diamond (Trillion)
6.52×6.52 mm vs 7.74×7.74 mm
26.36 mm²   37.14 mm²
Face-up size outline for 1ct Diamond (7.74×7.74mm, trillion cut)
Face-up size outline for 1ct Cubic Zirconia (6.52×6.52mm, trillion cut)
1ct Cubic Zirconia Trillion (6.52×6.52mm)
1ct Diamond Trillion (7.74×7.74mm)
Difference: 41% (10.78 mm²)
1ct Diamond (Trillion, 7.74×7.74mm) has approx. 41% more face-up area than 1ct Cubic Zirconia (Trillion, 6.52×6.52mm).


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