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2.5ct Aquamarine (Cushion, 8.65×8.65mm, Light Blue) vs 0.53ct Sapphire (Trillion, 5.69×5.69mm, Purple)


Quick summary: When looked from above (face-up position), 2.5ct Aquamarine (8.65×8.65mm, cushion cut) appears 3.4 times larger than 0.53ct Sapphire (5.69×5.69mm, trillion cut). See below how they compare side-by-side on a ring and finger.

2.5ct Aquamarine (cushion cut)
vs
 0.53ct Sapphire (trillion cut)
light blue
 
purple
8.65×8.65 mm 5.69×5.69 mm
actual size
Actual size of 2.5ct Aquamarine (cushion cut, 8.65×8.65mm, Light Blue color)   Actual size of 0.53ct Sapphire (trillion cut, 5.69×5.69mm, Purple color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 2.5ct Aquamarine (cushion cut, 8.65×8.65mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Purple 0.53ct Sapphire (trillion cut, 5.69×5.69mm) 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
 52% vs 34%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Aquamarine Cushion (8.65×8.65mm, Light Blue) and 0.53ct Sapphire Trillion (5.69×5.69mm, Purple) 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, Sapphire will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (4 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 Aquamarine (Cushion) 0.53 Ct Sapphire (Trillion)
8.65×8.65 mm vs 5.69×5.69 mm
67.34 mm²   20.07 mm²
Face-up size outline for 2.5ct Aquamarine (8.65×8.65mm, cushion cut)
Face-up size outline for 0.53ct Sapphire (5.69×5.69mm, trillion cut)
2.5ct Aquamarine Cushion (8.65×8.65mm)
0.53ct Sapphire Trillion (5.69×5.69mm)
Difference: 236% (47.27 mm²)
2.5ct Aquamarine (Cushion, 8.65×8.65mm) has approx. 236% more face-up area than 0.53ct Sapphire (Trillion, 5.69×5.69mm). In other words, it's 3.36x larger.


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