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1.75ct Diamond (Trillion, 9.32×9.32mm, White) vs 1.75ct Moissanite (Trillion, 9.47×9.47mm, White)


Quick summary: When looked from above (face-up position), 1.75ct Moissanite (9.47×9.47mm, trillion cut) appears 3% larger than 1.75ct Diamond (9.32×9.32mm, trillion cut). See below how they compare side-by-side on a ring and finger.

1.75ct Diamond (trillion cut)
vs
 1.75ct Moissanite (trillion cut)
white
 
white
9.32×9.32 mm 9.47×9.47 mm
actual size
Actual size of 1.75ct Diamond (trillion cut, 9.32×9.32mm, White color)   Actual size of 1.75ct Moissanite (trillion cut, 9.47×9.47mm, 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 Diamond (trillion cut, 9.32×9.32mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.75ct Moissanite (trillion cut, 9.47×9.47mm) 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
 56% vs 57%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.75ct Diamond Trillion (9.32×9.32mm, White) and 1.75ct Moissanite Trillion (9.47×9.47mm, 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.


1.75 Ct Diamond (Trillion) 1.75 Ct Moissanite (Trillion)
9.32×9.32 mm vs 9.47×9.47 mm
53.85 mm²   55.6 mm²
Face-up size outline for 1.75ct Moissanite (9.47×9.47mm, trillion cut)
Face-up size outline for 1.75ct Diamond (9.32×9.32mm, trillion cut)
1.75ct Diamond Trillion (9.32×9.32mm)
1.75ct Moissanite Trillion (9.47×9.47mm)
Difference: 3% (1.75 mm²)
1.75ct Moissanite (Trillion, 9.47×9.47mm) has approx. 3% more face-up area than 1.75ct Diamond (Trillion, 9.32×9.32mm).


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