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8ct Apatite (Cabochon, 14.75×9.83mm, Green) vs 8ct Aquamarine (Cabochon, 15.57×10.38mm, Light Blue)


Quick summary: When looked from above (face-up position), 8ct Aquamarine (15.57×10.38mm, cabochon cut) appears 11% larger than 8ct Apatite (14.75×9.83mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

8ct Apatite (cabochon cut)
vs
 8ct Aquamarine (cabochon cut)
green
 
light blue
14.75×9.83 mm 15.57×10.38 mm
actual size
Actual size of 8ct Apatite (cabochon cut, 14.75×9.83mm, Green color)   Actual size of 8ct Aquamarine (cabochon cut, 15.57×10.38mm, 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 8ct Apatite (cabochon cut, 14.75×9.83mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 8ct Aquamarine (cabochon cut, 15.57×10.38mm) 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
 59% vs 62%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 8ct Apatite Cabochon (14.75×9.83mm, Green) and 8ct Aquamarine Cabochon (15.57×10.38mm, 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.


8 Ct Apatite (Cabochon) 8 Ct Aquamarine (Cabochon)
14.75×9.83 mm vs 15.57×10.38 mm
118.89 mm²   132.53 mm²
Face-up size outline for 8ct Aquamarine (15.57×10.38mm, cabochon cut)
Face-up size outline for 8ct Apatite (14.75×9.83mm, cabochon cut)
8ct Apatite Cabochon (14.75×9.83mm)
8ct Aquamarine Cabochon (15.57×10.38mm)
Difference: 11% (13.64 mm²)
8ct Aquamarine (Cabochon, 15.57×10.38mm) has approx. 11% more face-up area than 8ct Apatite (Cabochon, 14.75×9.83mm).


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