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3.5ct Diamond (Asscher, 8.52×8.52mm, White) vs 3.5ct Cubic Zirconia (Asscher, 7.21×7.21mm, White)


Quick summary: When looked from above (face-up position), 3.5ct Diamond (8.52×8.52mm, asscher cut) appears 40% larger than 3.5ct Cubic Zirconia (7.21×7.21mm, asscher cut). See below how they compare side-by-side on a ring and finger.

3.5ct Diamond (asscher cut)
vs
3.5ct Cubic Zirconia (asscher cut)
white
 
white
8.52×8.52 mm 7.21×7.21 mm
actual size
Actual size of 3.5ct Diamond (asscher cut, 8.52×8.52mm, White color)   Actual size of 3.5ct Cubic Zirconia (asscher cut, 7.21×7.21mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 3.5ct Diamond (asscher cut, 8.52×8.52mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 3.5ct Cubic Zirconia (asscher cut, 7.21×7.21mm) 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
51% vs 43%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3.5ct Diamond Asscher (8.52×8.52mm, White) and 3.5ct Cubic Zirconia Asscher (7.21×7.21mm, 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.


3.5 Ct Diamond (Asscher) 3.5 Ct Cubic Zirconia (Asscher)
8.52×8.52 mm vs 7.21×7.21 mm
66.78 mm²   47.83 mm²
Face-up size outline for 3.5ct Diamond (8.52×8.52mm, asscher cut)
Face-up size outline for 3.5ct Cubic Zirconia (7.21×7.21mm, asscher cut)
3.5ct Diamond Asscher (8.52×8.52mm)
3.5ct Cubic Zirconia Asscher (7.21×7.21mm)
Difference: 40% (18.95 mm²)
3.5ct Diamond (Asscher, 8.52×8.52mm) has approx. 40% more face-up area than 3.5ct Cubic Zirconia (Asscher, 7.21×7.21mm).


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