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10ct Alexandrite (Princess, 11.88×11.88mm, Bluish Green) vs 10ct Emerald (Emerald, 15.69×11.62mm, Green)


Quick summary: When looked from above (face-up position), 10ct Emerald (15.69×11.62mm, emerald cut) appears 20% larger than 10ct Alexandrite (11.88×11.88mm, princess cut). See below how they compare side-by-side on a ring and finger.

10ct Alexandrite (princess cut)
vs
 10ct Emerald (emerald cut)
bluish green
 
green
11.88×11.88 mm 15.69×11.62 mm
actual size
Actual size of 10ct Alexandrite (princess cut, 11.88×11.88mm, Bluish Green color)   Actual size of 10ct Emerald (emerald cut, 15.69×11.62mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 10ct Alexandrite (princess cut, 11.88×11.88mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 10ct Emerald (emerald cut, 15.69×11.62mm) 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 69%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Alexandrite Princess (11.88×11.88mm, Bluish Green) and 10ct Emerald Emerald (15.69×11.62mm, 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 Emerald for a given carat weight, because it has higher specific gravity (3.73 vs. 2.72 - this means it's "heavier" compared to Emerald 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 Alexandrite (Princess) 10 Ct Emerald (Emerald)
11.88×11.88 mm vs 15.69×11.62 mm
141.13 mm²   169.56 mm²
Face-up size outline for 10ct Emerald (15.69×11.62mm, emerald cut)
Face-up size outline for 10ct Alexandrite (11.88×11.88mm, princess cut)
10ct Alexandrite Princess (11.88×11.88mm)
10ct Emerald Emerald (15.69×11.62mm)
Difference: 20% (28.43 mm²)
10ct Emerald (Emerald, 15.69×11.62mm) has approx. 20% more face-up area than 10ct Alexandrite (Princess, 11.88×11.88mm).


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