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3.5ct Fluorite (Marquise, 15.94×7.97mm, Bluish Green) vs 3.5ct Aquamarine (Marquise, 16.78×8.39mm, Light Blue)


Quick summary: When looked from above (face-up position), 3.5ct Aquamarine (16.78×8.39mm, marquise cut) appears 11% larger than 3.5ct Fluorite (15.94×7.97mm, marquise cut). See below how they compare side-by-side on a ring and finger.

3.5ct Fluorite (marquise cut)
vs
 3.5ct Aquamarine (marquise cut)
bluish green
 
light blue
15.94×7.97 mm 16.78×8.39 mm
actual size
Actual size of 3.5ct Fluorite (marquise cut, 15.94×7.97mm, Bluish Green color)   Actual size of 3.5ct Aquamarine (marquise cut, 16.78×8.39mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 3.5ct Fluorite (marquise cut, 15.94×7.97mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 3.5ct Aquamarine (marquise cut, 16.78×8.39mm) 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
 48% vs 50%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 3.5ct Fluorite Marquise (15.94×7.97mm, Bluish Green) and 3.5ct Aquamarine Marquise (16.78×8.39mm, Light Blue) 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, Fluorite will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.18 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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.


3.5 Ct Fluorite (Marquise) 3.5 Ct Aquamarine (Marquise)
15.94×7.97 mm vs 16.78×8.39 mm
90.2 mm²   99.96 mm²
Face-up size outline for 3.5ct Aquamarine (16.78×8.39mm, marquise cut)
Face-up size outline for 3.5ct Fluorite (15.94×7.97mm, marquise cut)
3.5ct Fluorite Marquise (15.94×7.97mm)
3.5ct Aquamarine Marquise (16.78×8.39mm)
Difference: 11% (9.76 mm²)
3.5ct Aquamarine (Marquise, 16.78×8.39mm) has approx. 11% more face-up area than 3.5ct Fluorite (Marquise, 15.94×7.97mm).


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