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1.75ct Cubic Zirconia (Cushion, 5.95×5.95mm, White) vs 1.75ct Diamond (Cushion, 7.02×7.02mm, White)


Quick summary: When looked from above (face-up position), 1.75ct Diamond (7.02×7.02mm, cushion cut) appears 39% larger than 1.75ct Cubic Zirconia (5.95×5.95mm, cushion cut). See below how they compare side-by-side on a ring and finger.

1.75ct Cubic Zirconia (cushion cut)
vs
1.75ct Diamond (cushion cut)
white
 
white
5.95×5.95 mm 7.02×7.02 mm
actual size
Actual size of 1.75ct Cubic Zirconia (cushion cut, 5.95×5.95mm, White color)   Actual size of 1.75ct Diamond (cushion cut, 7.02×7.02mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.75ct Cubic Zirconia (cushion cut, 5.95×5.95mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.75ct Diamond (cushion cut, 7.02×7.02mm) 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
36% vs 42%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.75ct Cubic Zirconia Cushion (5.95×5.95mm, White) and 1.75ct Diamond Cushion (7.02×7.02mm, 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.


1.75 Ct Cubic Zirconia (Cushion) 1.75 Ct Diamond (Cushion)
5.95×5.95 mm vs 7.02×7.02 mm
31.86 mm²   44.35 mm²
Face-up size outline for 1.75ct Diamond (7.02×7.02mm, cushion cut)
Face-up size outline for 1.75ct Cubic Zirconia (5.95×5.95mm, cushion cut)
1.75ct Cubic Zirconia Cushion (5.95×5.95mm)
1.75ct Diamond Cushion (7.02×7.02mm)
Difference: 39% (12.49 mm²)
1.75ct Diamond (Cushion, 7.02×7.02mm) has approx. 39% more face-up area than 1.75ct Cubic Zirconia (Cushion, 5.95×5.95mm).


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