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1.25ct Fluorite (Emerald, 7.43×5.5mm, Bluish Green) vs 1.25ct Alexandrite (Emerald, 7.05×5.22mm, Bluish Green)


Quick summary: When looked from above (face-up position), 1.25ct Fluorite (7.43×5.5mm, emerald cut) appears 11% larger than 1.25ct Alexandrite (7.05×5.22mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1.25ct Fluorite (emerald cut)
vs
1.25ct Alexandrite (emerald cut)
bluish green
 
bluish green
7.43×5.5 mm 7.05×5.22 mm
actual size
Actual size of 1.25ct Fluorite (emerald cut, 7.43×5.5mm, Bluish Green color)   Actual size of 1.25ct Alexandrite (emerald cut, 7.05×5.22mm, Bluish 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 1.25ct Fluorite (emerald cut, 7.43×5.5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 1.25ct Alexandrite (emerald cut, 7.05×5.22mm) 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
33% vs 31%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.25ct Fluorite Emerald (7.43×5.5mm, Bluish Green) and 1.25ct Alexandrite Emerald (7.05×5.22mm, 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 Fluorite for a given carat weight, because it has higher specific gravity (3.73 vs. 3.18 - this means it's "heavier" compared to Fluorite 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.


1.25 Ct Fluorite (Emerald) 1.25 Ct Alexandrite (Emerald)
7.43×5.5 mm vs 7.05×5.22 mm
38 mm²   34.22 mm²
Face-up size outline for 1.25ct Fluorite (7.43×5.5mm, emerald cut)
Face-up size outline for 1.25ct Alexandrite (7.05×5.22mm, emerald cut)
1.25ct Fluorite Emerald (7.43×5.5mm)
1.25ct Alexandrite Emerald (7.05×5.22mm)
Difference: 11% (3.78 mm²)
1.25ct Fluorite (Emerald, 7.43×5.5mm) has approx. 11% more face-up area than 1.25ct Alexandrite (Emerald, 7.05×5.22mm).


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