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9.5ct Spinel (Emerald, 14.01×10.38mm, Red) vs 9.5ct Alexandrite (Emerald, 13.84×10.25mm, Bluish Green)


Quick summary: When looked from above (face-up position), 9.5ct Spinel (14.01×10.38mm, emerald cut) appears 3% larger than 9.5ct Alexandrite (13.84×10.25mm, emerald cut). See below how they compare side-by-side on a ring and finger.

9.5ct Spinel (emerald cut)
vs
 9.5ct Alexandrite (emerald cut)
red
 
bluish green
14.01×10.38 mm 13.84×10.25 mm
actual size
Actual size of 9.5ct Spinel (emerald cut, 14.01×10.38mm, Red color)   Actual size of 9.5ct Alexandrite (emerald cut, 13.84×10.25mm, 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 9.5ct Spinel (emerald cut, 14.01×10.38mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 9.5ct Alexandrite (emerald cut, 13.84×10.25mm) 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
 62% vs 61%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 9.5ct Spinel Emerald (14.01×10.38mm, Red) and 9.5ct Alexandrite Emerald (13.84×10.25mm, 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.


9.5 Ct Spinel (Emerald) 9.5 Ct Alexandrite (Emerald)
14.01×10.38 mm vs 13.84×10.25 mm
135.24 mm²   131.93 mm²
Face-up size outline for 9.5ct Spinel (14.01×10.38mm, emerald cut)
Face-up size outline for 9.5ct Alexandrite (13.84×10.25mm, emerald cut)
9.5ct Spinel Emerald (14.01×10.38mm)
9.5ct Alexandrite Emerald (13.84×10.25mm)
Difference: 3% (3.31 mm²)
9.5ct Spinel (Emerald, 14.01×10.38mm) has approx. 3% more face-up area than 9.5ct Alexandrite (Emerald, 13.84×10.25mm).


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