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1ct Aquamarine (Oval, 8×6mm, Light Blue) vs 1ct Spinel (Emerald, 6.62×4.9mm, Light Red)


Quick summary: When looked from above (face-up position), 1ct Aquamarine (8×6mm, oval cut) appears 30% larger than 1ct Spinel (6.62×4.9mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1ct Aquamarine (oval cut)
vs
1ct Spinel (emerald cut)
light blue
 
light red
8×6 mm 6.62×4.9 mm
actual size
Actual size of 1ct Aquamarine (oval cut, 8×6mm, Light Blue color)   Actual size of 1ct Spinel (emerald cut, 6.62×4.9mm, Light Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 1ct Aquamarine (oval cut, 8×6mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Red 1ct Spinel (emerald cut, 6.62×4.9mm) 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
36% vs 29%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Aquamarine Oval (8×6mm, Light Blue) and 1ct Spinel Emerald (6.62×4.9mm, Light Red) 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, Spinel will face-up smaller than Aquamarine for a given carat weight, because it has higher specific gravity (3.6 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.


1 Ct Aquamarine (Oval) 1 Ct Spinel (Emerald)
8×6 mm vs 6.62×4.9 mm
39.36 mm²   30.17 mm²
Face-up size outline for 1ct Aquamarine (8×6mm, oval cut)
Face-up size outline for 1ct Spinel (6.62×4.9mm, emerald cut)
1ct Aquamarine Oval (8×6mm)
1ct Spinel Emerald (6.62×4.9mm)
Difference: 30% (9.19 mm²)
1ct Aquamarine (Oval, 8×6mm) has approx. 30% more face-up area than 1ct Spinel (Emerald, 6.62×4.9mm).


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