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2.5ct Aquamarine (Radiant, 8.5×8.5mm, Light Blue) vs 2.5ct Sapphire (Radiant, 7.48×7.48mm, Blue)


Quick summary: When looked from above (face-up position), 2.5ct Aquamarine (8.5×8.5mm, radiant cut) appears 29% larger than 2.5ct Sapphire (7.48×7.48mm, radiant cut). See below how they compare side-by-side on a ring and finger.

2.5ct Aquamarine (radiant cut)
vs
2.5ct Sapphire (radiant cut)
light blue
 
blue
8.5×8.5 mm 7.48×7.48 mm
actual size
Actual size of 2.5ct Aquamarine (radiant cut, 8.5×8.5mm, Light Blue color)   Actual size of 2.5ct Sapphire (radiant cut, 7.48×7.48mm, Blue 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 (radiant cut, 8.5×8.5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2.5ct Sapphire (radiant cut, 7.48×7.48mm) 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
51% vs 45%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Aquamarine Radiant (8.5×8.5mm, Light Blue) and 2.5ct Sapphire Radiant (7.48×7.48mm, 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.


2.5 Ct Aquamarine (Radiant) 2.5 Ct Sapphire (Radiant)
8.5×8.5 mm vs 7.48×7.48 mm
68.64 mm²   53.15 mm²
Face-up size outline for 2.5ct Aquamarine (8.5×8.5mm, radiant cut)
Face-up size outline for 2.5ct Sapphire (7.48×7.48mm, radiant cut)
2.5ct Aquamarine Radiant (8.5×8.5mm)
2.5ct Sapphire Radiant (7.48×7.48mm)
Difference: 29% (15.49 mm²)
2.5ct Aquamarine (Radiant, 8.5×8.5mm) has approx. 29% more face-up area than 2.5ct Sapphire (Radiant, 7.48×7.48mm).


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