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10ct Spinel (Asscher, 11.9×11.9mm, Red) vs 10ct Alexandrite (Asscher, 11.76×11.76mm, Bluish Green)


Quick summary: When looked from above (face-up position), 10ct Spinel (11.9×11.9mm, asscher cut) appears 2% larger than 10ct Alexandrite (11.76×11.76mm, asscher cut). See below how they compare side-by-side on a ring and finger.

10ct Spinel (asscher cut)
vs
 10ct Alexandrite (asscher cut)
red
 
bluish green
11.9×11.9 mm 11.76×11.76 mm
actual size
Actual size of 10ct Spinel (asscher cut, 11.9×11.9mm, Red color)   Actual size of 10ct Alexandrite (asscher cut, 11.76×11.76mm, Bluish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 10ct Spinel (asscher cut, 11.9×11.9mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 10ct Alexandrite (asscher cut, 11.76×11.76mm) 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
 71% vs 70%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Spinel Asscher (11.9×11.9mm, Red) and 10ct Alexandrite Asscher (11.76×11.76mm, Bluish Green) 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, Alexandrite will face-up smaller than Spinel for a given carat weight, because it has higher specific gravity (3.73 vs. 3.6 - this means it's "heavier" compared to Spinel 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.


10 Ct Spinel (Asscher) 10 Ct Alexandrite (Asscher)
11.9×11.9 mm vs 11.76×11.76 mm
130.28 mm²   127.23 mm²
Face-up size outline for 10ct Spinel (11.9×11.9mm, asscher cut)
Face-up size outline for 10ct Alexandrite (11.76×11.76mm, asscher cut)
10ct Spinel Asscher (11.9×11.9mm)
10ct Alexandrite Asscher (11.76×11.76mm)
Difference: 2% (3.05 mm²)
10ct Spinel (Asscher, 11.9×11.9mm) has approx. 2% more face-up area than 10ct Alexandrite (Asscher, 11.76×11.76mm).


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