×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

0.25ct Cubic Zirconia (Asscher, 2.99×2.99mm, White) vs 0.25ct Diamond (Asscher, 3.54×3.54mm, White)


Quick summary: When looked from above (face-up position), 0.25ct Diamond (3.54×3.54mm, asscher cut) appears 40% larger than 0.25ct Cubic Zirconia (2.99×2.99mm, asscher cut). See below how they compare side-by-side on a ring and finger.

0.25ct Cubic Zirconia (asscher cut)
vs
0.25ct Diamond (asscher cut)
white
 
white
2.99×2.99 mm 3.54×3.54 mm
actual size
Actual size of 0.25ct Cubic Zirconia (asscher cut, 2.99×2.99mm, White color)   Actual size of 0.25ct Diamond (asscher cut, 3.54×3.54mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.25ct Cubic Zirconia (asscher cut, 2.99×2.99mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.25ct Diamond (asscher cut, 3.54×3.54mm) 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
18% vs 21%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.25ct Cubic Zirconia Asscher (2.99×2.99mm, White) and 0.25ct Diamond Asscher (3.54×3.54mm, 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.


0.25 Ct Cubic Zirconia (Asscher) 0.25 Ct Diamond (Asscher)
2.99×2.99 mm vs 3.54×3.54 mm
8.22 mm²   11.53 mm²
Face-up size outline for 0.25ct Diamond (3.54×3.54mm, asscher cut)
Face-up size outline for 0.25ct Cubic Zirconia (2.99×2.99mm, asscher cut)
0.25ct Cubic Zirconia Asscher (2.99×2.99mm)
0.25ct Diamond Asscher (3.54×3.54mm)
Difference: 40% (3.31 mm²)
0.25ct Diamond (Asscher, 3.54×3.54mm) has approx. 40% more face-up area than 0.25ct Cubic Zirconia (Asscher, 2.99×2.99mm).


Popular comparisons: