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2.5ct Fluorite (Cushion, 8.11×8.11mm, Bluish Green) vs 2.5ct Aquamarine (Cushion, 8.54×8.54mm, Light Blue)


Quick summary: When looked from above (face-up position), 2.5ct Aquamarine (8.54×8.54mm, cushion cut) appears 11% larger than 2.5ct Fluorite (8.11×8.11mm, cushion cut). See below how they compare side-by-side on a ring and finger.

2.5ct Fluorite (cushion cut)
vs
 2.5ct Aquamarine (cushion cut)
bluish green
 
light blue
8.11×8.11 mm 8.54×8.54 mm
actual size
Actual size of 2.5ct Fluorite (cushion cut, 8.11×8.11mm, Bluish Green color)   Actual size of 2.5ct Aquamarine (cushion cut, 8.54×8.54mm, 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 2.5ct Fluorite (cushion cut, 8.11×8.11mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 2.5ct Aquamarine (cushion cut, 8.54×8.54mm) 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 51%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Fluorite Cushion (8.11×8.11mm, Bluish Green) and 2.5ct Aquamarine Cushion (8.54×8.54mm, 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.


2.5 Ct Fluorite (Cushion) 2.5 Ct Aquamarine (Cushion)
8.11×8.11 mm vs 8.54×8.54 mm
59.19 mm²   65.64 mm²
Face-up size outline for 2.5ct Aquamarine (8.54×8.54mm, cushion cut)
Face-up size outline for 2.5ct Fluorite (8.11×8.11mm, cushion cut)
2.5ct Fluorite Cushion (8.11×8.11mm)
2.5ct Aquamarine Cushion (8.54×8.54mm)
Difference: 11% (6.45 mm²)
2.5ct Aquamarine (Cushion, 8.54×8.54mm) has approx. 11% more face-up area than 2.5ct Fluorite (Cushion, 8.11×8.11mm).


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