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2.5ct Apatite (Round, 8.74×8.74mm, Green) vs 2.5ct Aquamarine (Round, 9.23×9.23mm, Light Blue)


Quick summary: When looked from above (face-up position), 2.5ct Aquamarine (9.23×9.23mm, round cut) appears 12% larger than 2.5ct Apatite (8.74×8.74mm, round cut). See below how they compare side-by-side on a ring and finger.

2.5ct Apatite (round cut)
vs
 2.5ct Aquamarine (round cut)
green
 
light blue
8.74×8.74 mm 9.23×9.23 mm
actual size
Actual size of 2.5ct Apatite (round cut, 8.74×8.74mm, Green color)   Actual size of 2.5ct Aquamarine (round cut, 9.23×9.23mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 2.5ct Apatite (round cut, 8.74×8.74mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 2.5ct Aquamarine (round cut, 9.23×9.23mm) 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 55%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Apatite Round (8.74×8.74mm, Green) and 2.5ct Aquamarine Round (9.23×9.23mm, 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, Apatite will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.2 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 Apatite (Round) 2.5 Ct Aquamarine (Round)
8.74×8.74 mm vs 9.23×9.23 mm
59.99 mm²   66.91 mm²
Face-up size outline for 2.5ct Aquamarine (9.23×9.23mm, round cut)
Face-up size outline for 2.5ct Apatite (8.74×8.74mm, round cut)
2.5ct Apatite Round (8.74×8.74mm)
2.5ct Aquamarine Round (9.23×9.23mm)
Difference: 12% (6.92 mm²)
2.5ct Aquamarine (Round, 9.23×9.23mm) has approx. 12% more face-up area than 2.5ct Apatite (Round, 8.74×8.74mm).


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