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4.5ct Morganite (Marquise, 18.08×9.04mm, Light Purple) vs 4.5ct Moissanite (Marquise, 17.26×8.63mm, White)


Quick summary: When looked from above (face-up position), 4.5ct Morganite (18.08×9.04mm, marquise cut) appears 10% larger than 4.5ct Moissanite (17.26×8.63mm, marquise cut). See below how they compare side-by-side on a ring and finger.

4.5ct Morganite (marquise cut)
vs
4.5ct Moissanite (marquise cut)
light purple
 
white
18.08×9.04 mm 17.26×8.63 mm
actual size
Actual size of 4.5ct Morganite (marquise cut, 18.08×9.04mm, Light Purple color)   Actual size of 4.5ct Moissanite (marquise cut, 17.26×8.63mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Purple 4.5ct Morganite (marquise cut, 18.08×9.04mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 4.5ct Moissanite (marquise cut, 17.26×8.63mm) 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
54% vs 52%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4.5ct Morganite Marquise (18.08×9.04mm, Light Purple) and 4.5ct Moissanite Marquise (17.26×8.63mm, 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, Moissanite will face-up smaller than Morganite for a given carat weight, because it has higher specific gravity (3.22 vs. 2.8 - this means it's "heavier" compared to Morganite 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.


4.5 Ct Morganite (Marquise) 4.5 Ct Moissanite (Marquise)
18.08×9.04 mm vs 17.26×8.63 mm
116.04 mm²   105.76 mm²
Face-up size outline for 4.5ct Morganite (18.08×9.04mm, marquise cut)
Face-up size outline for 4.5ct Moissanite (17.26×8.63mm, marquise cut)
4.5ct Morganite Marquise (18.08×9.04mm)
4.5ct Moissanite Marquise (17.26×8.63mm)
Difference: 10% (10.28 mm²)
4.5ct Morganite (Marquise, 18.08×9.04mm) has approx. 10% more face-up area than 4.5ct Moissanite (Marquise, 17.26×8.63mm).


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