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0.75ct Diamond (Asscher, 5.1×5.1mm, White) vs 0.75ct Moissanite (Asscher, 5.21×5.21mm, White)


Quick summary: When looked from above (face-up position), 0.75ct Moissanite (5.21×5.21mm, asscher cut) appears 4% larger than 0.75ct Diamond (5.1×5.1mm, asscher cut). See below how they compare side-by-side on a ring and finger.

0.75ct Diamond (asscher cut)
vs
0.75ct Moissanite (asscher cut)
white
 
white
5.1×5.1 mm 5.21×5.21 mm
actual size
Actual size of 0.75ct Diamond (asscher cut, 5.1×5.1mm, White color)   Actual size of 0.75ct Moissanite (asscher cut, 5.21×5.21mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.75ct Diamond (asscher cut, 5.1×5.1mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.75ct Moissanite (asscher cut, 5.21×5.21mm) 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
31% vs 31%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.75ct Diamond Asscher (5.1×5.1mm, White) and 0.75ct Moissanite Asscher (5.21×5.21mm, 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, Diamond will face-up smaller than Moissanite for a given carat weight, because it has higher specific gravity (3.52 vs. 3.22 - this means it's "heavier" compared to Moissanite 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.


0.75 Ct Diamond (Asscher) 0.75 Ct Moissanite (Asscher)
5.1×5.1 mm vs 5.21×5.21 mm
23.93 mm²   24.97 mm²
Face-up size outline for 0.75ct Moissanite (5.21×5.21mm, asscher cut)
Face-up size outline for 0.75ct Diamond (5.1×5.1mm, asscher cut)
0.75ct Diamond Asscher (5.1×5.1mm)
0.75ct Moissanite Asscher (5.21×5.21mm)
Difference: 4% (1.04 mm²)
0.75ct Moissanite (Asscher, 5.21×5.21mm) has approx. 4% more face-up area than 0.75ct Diamond (Asscher, 5.1×5.1mm).


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