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2.3ct Spinel (Cushion, 7.64×7.64mm, Red) vs 2.5ct Aquamarine (Round, 9.25×9.25mm, Light Blue)


Quick summary: When looked from above (face-up position), 2.5ct Aquamarine (9.25×9.25mm, round cut) appears 28% larger than 2.3ct Spinel (7.64×7.64mm, cushion cut). See below how they compare side-by-side on a ring and finger.

2.3ct Spinel (cushion cut)
vs
 2.5ct Aquamarine (round cut)
red
 
light blue
7.64×7.64 mm 9.25×9.25 mm
actual size
Actual size of 2.3ct Spinel (cushion cut, 7.64×7.64mm, Red color)   Actual size of 2.5ct Aquamarine (round cut, 9.25×9.25mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 2.3ct Spinel (cushion cut, 7.64×7.64mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 2.5ct Aquamarine (round cut, 9.25×9.25mm) 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
 46% vs 55%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.3ct Spinel Cushion (7.64×7.64mm, Red) and 2.5ct Aquamarine Round (9.25×9.25mm, 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, Spinel will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.6 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.


2.3 Ct Spinel (Cushion) 2.5 Ct Aquamarine (Round)
7.64×7.64 mm vs 9.25×9.25 mm
52.53 mm²   67.2 mm²
Face-up size outline for 2.5ct Aquamarine (9.25×9.25mm, round cut)
Face-up size outline for 2.3ct Spinel (7.64×7.64mm, cushion cut)
2.3ct Spinel Cushion (7.64×7.64mm)
2.5ct Aquamarine Round (9.25×9.25mm)
Difference: 28% (14.67 mm²)
2.5ct Aquamarine (Round, 9.25×9.25mm) has approx. 28% more face-up area than 2.3ct Spinel (Cushion, 7.64×7.64mm).


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