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7.5ct Diamond (Asscher, 10.99×10.99mm, White) vs 7.5ct Cubic Zirconia (Asscher, 9.3×9.3mm, White)


Quick summary: When looked from above (face-up position), 7.5ct Diamond (10.99×10.99mm, asscher cut) appears 40% larger than 7.5ct Cubic Zirconia (9.3×9.3mm, asscher cut). See below how they compare side-by-side on a ring and finger.

7.5ct Diamond (asscher cut)
vs
7.5ct Cubic Zirconia (asscher cut)
white
 
white
10.99×10.99 mm 9.3×9.3 mm
actual size
Actual size of 7.5ct Diamond (asscher cut, 10.99×10.99mm, White color)   Actual size of 7.5ct Cubic Zirconia (asscher cut, 9.3×9.3mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 7.5ct Diamond (asscher cut, 10.99×10.99mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 7.5ct Cubic Zirconia (asscher cut, 9.3×9.3mm) 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
66% vs 56%
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Ring diameter: 16.9 mm
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Actual sizes of 7.5ct Diamond Asscher (10.99×10.99mm, White) and 7.5ct Cubic Zirconia Asscher (9.3×9.3mm, 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.


7.5 Ct Diamond (Asscher) 7.5 Ct Cubic Zirconia (Asscher)
10.99×10.99 mm vs 9.3×9.3 mm
111.12 mm²   79.57 mm²
Face-up size outline for 7.5ct Diamond (10.99×10.99mm, asscher cut)
Face-up size outline for 7.5ct Cubic Zirconia (9.3×9.3mm, asscher cut)
7.5ct Diamond Asscher (10.99×10.99mm)
7.5ct Cubic Zirconia Asscher (9.3×9.3mm)
Difference: 40% (31.55 mm²)
7.5ct Diamond (Asscher, 10.99×10.99mm) has approx. 40% more face-up area than 7.5ct Cubic Zirconia (Asscher, 9.3×9.3mm).


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