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40ct Alexandrite (Trillion, 24.67×24.67mm, Bluish Green) vs 40ct Emerald (Pear, 32.39×19.51mm, Green)


Quick summary: When looked from above (face-up position), 40ct Emerald (32.39×19.51mm, pear cut) appears 22% larger than 40ct Alexandrite (24.67×24.67mm, trillion cut). See below how they compare side-by-side on a ring and finger.

40ct Alexandrite (trillion cut)
vs
 40ct Emerald (pear cut)
bluish green
 
green
24.67×24.67 mm 32.39×19.51 mm
actual size
Actual size of 40ct Alexandrite (trillion cut, 24.67×24.67mm, Bluish Green color)   Actual size of 40ct Emerald (pear cut, 32.39×19.51mm, 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 40ct Alexandrite (trillion cut, 24.67×24.67mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 40ct Emerald (pear cut, 32.39×19.51mm) 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
 146% vs 116%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Alexandrite Trillion (24.67×24.67mm, Bluish Green) and 40ct Emerald Pear (32.39×19.51mm, 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.


40 Ct Alexandrite (Trillion) 40 Ct Emerald (Pear)
24.67×24.67 mm vs 32.39×19.51 mm
377.34 mm²   461.31 mm²
Face-up size outline for 40ct Emerald (32.39×19.51mm, pear cut)
Face-up size outline for 40ct Alexandrite (24.67×24.67mm, trillion cut)
40ct Alexandrite Trillion (24.67×24.67mm)
40ct Emerald Pear (32.39×19.51mm)
Difference: 22% (83.97 mm²)
40ct Emerald (Pear, 32.39×19.51mm) has approx. 22% more face-up area than 40ct Alexandrite (Trillion, 24.67×24.67mm).


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