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2ct Cubic Zirconia (Emerald, 7.17×5.31mm, White) vs 2ct Diamond (Emerald, 8.42×6.24mm, White)


Quick summary: When looked from above (face-up position), 2ct Diamond (8.42×6.24mm, emerald cut) appears 38% larger than 2ct Cubic Zirconia (7.17×5.31mm, emerald cut). See below how they compare side-by-side on a ring and finger.

2ct Cubic Zirconia (emerald cut)
vs
2ct Diamond (emerald cut)
white
 
white
7.17×5.31 mm 8.42×6.24 mm
actual size
Actual size of 2ct Cubic Zirconia (emerald cut, 7.17×5.31mm, White color)   Actual size of 2ct Diamond (emerald cut, 8.42×6.24mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 2ct Cubic Zirconia (emerald cut, 7.17×5.31mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2ct Diamond (emerald cut, 8.42×6.24mm) 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
32% vs 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2ct Cubic Zirconia Emerald (7.17×5.31mm, White) and 2ct Diamond Emerald (8.42×6.24mm, 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.


2 Ct Cubic Zirconia (Emerald) 2 Ct Diamond (Emerald)
7.17×5.31 mm vs 8.42×6.24 mm
35.41 mm²   48.86 mm²
Face-up size outline for 2ct Diamond (8.42×6.24mm, emerald cut)
Face-up size outline for 2ct Cubic Zirconia (7.17×5.31mm, emerald cut)
2ct Cubic Zirconia Emerald (7.17×5.31mm)
2ct Diamond Emerald (8.42×6.24mm)
Difference: 38% (13.45 mm²)
2ct Diamond (Emerald, 8.42×6.24mm) has approx. 38% more face-up area than 2ct Cubic Zirconia (Emerald, 7.17×5.31mm).


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