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15ct Aquamarine (Princess, 14.73×14.73mm, Light Blue) vs 15ct Diamond (Princess, 13.59×13.59mm, White)


Quick summary: When looked from above (face-up position), 15ct Aquamarine (14.73×14.73mm, princess cut) appears 17% larger than 15ct Diamond (13.59×13.59mm, princess cut). See below how they compare side-by-side on a ring and finger.

15ct Aquamarine (princess cut)
vs
 15ct Diamond (princess cut)
light blue
 
white
14.73×14.73 mm 13.59×13.59 mm
actual size
Actual size of 15ct Aquamarine (princess cut, 14.73×14.73mm, Light Blue color)   Actual size of 15ct Diamond (princess cut, 13.59×13.59mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 15ct Aquamarine (princess cut, 14.73×14.73mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 15ct Diamond (princess cut, 13.59×13.59mm) 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
 88% vs 81%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Aquamarine Princess (14.73×14.73mm, Light Blue) and 15ct Diamond Princess (13.59×13.59mm, 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, Diamond will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.52 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.


15 Ct Aquamarine (Princess) 15 Ct Diamond (Princess)
14.73×14.73 mm vs 13.59×13.59 mm
216.97 mm²   184.69 mm²
Face-up size outline for 15ct Aquamarine (14.73×14.73mm, princess cut)
Face-up size outline for 15ct Diamond (13.59×13.59mm, princess cut)
15ct Aquamarine Princess (14.73×14.73mm)
15ct Diamond Princess (13.59×13.59mm)
Difference: 17% (32.28 mm²)
15ct Aquamarine (Princess, 14.73×14.73mm) has approx. 17% more face-up area than 15ct Diamond (Princess, 13.59×13.59mm).


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