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0.5ct Sapphire (Round, 4.75×4.75mm, Blue) vs 0.5ct Aquamarine (Princess, 4.86×4.86mm, Light Blue)


Quick summary: When looked from above (face-up position), 0.5ct Aquamarine (4.86×4.86mm, princess cut) appears 33% larger than 0.5ct Sapphire (4.75×4.75mm, round cut). See below how they compare side-by-side on a ring and finger.

0.5ct Sapphire (round cut)
vs
 0.5ct Aquamarine (princess cut)
blue
 
light blue
4.75×4.75 mm 4.86×4.86 mm
actual size
Actual size of 0.5ct Sapphire (round cut, 4.75×4.75mm, Blue color)   Actual size of 0.5ct Aquamarine (princess cut, 4.86×4.86mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.5ct Sapphire (round cut, 4.75×4.75mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 0.5ct Aquamarine (princess cut, 4.86×4.86mm) 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
 29% vs 29%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.5ct Sapphire Round (4.75×4.75mm, Blue) and 0.5ct Aquamarine Princess (4.86×4.86mm, 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, 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.


0.5 Ct Sapphire (Round) 0.5 Ct Aquamarine (Princess)
4.75×4.75 mm vs 4.86×4.86 mm
17.72 mm²   23.62 mm²
Face-up size outline for 0.5ct Aquamarine (4.86×4.86mm, princess cut)
Face-up size outline for 0.5ct Sapphire (4.75×4.75mm, round cut)
0.5ct Sapphire Round (4.75×4.75mm)
0.5ct Aquamarine Princess (4.86×4.86mm)
Difference: 33% (5.9 mm²)
0.5ct Aquamarine (Princess, 4.86×4.86mm) has approx. 33% more face-up area than 0.5ct Sapphire (Round, 4.75×4.75mm).


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