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1.5ct Fluorite (Asscher, 6.59×6.59mm, Bluish Green) vs 1.5ct Alexandrite (Asscher, 6.25×6.25mm, Bluish Green)


Quick summary: When looked from above (face-up position), 1.5ct Fluorite (6.59×6.59mm, asscher cut) appears 11% larger than 1.5ct Alexandrite (6.25×6.25mm, asscher cut). See below how they compare side-by-side on a ring and finger.

1.5ct Fluorite (asscher cut)
vs
 1.5ct Alexandrite (asscher cut)
bluish green
 
bluish green
6.59×6.59 mm 6.25×6.25 mm
actual size
Actual size of 1.5ct Fluorite (asscher cut, 6.59×6.59mm, Bluish Green color)   Actual size of 1.5ct Alexandrite (asscher cut, 6.25×6.25mm, Bluish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 1.5ct Fluorite (asscher cut, 6.59×6.59mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 1.5ct Alexandrite (asscher cut, 6.25×6.25mm) 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
 39% vs 37%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.5ct Fluorite Asscher (6.59×6.59mm, Bluish Green) and 1.5ct Alexandrite Asscher (6.25×6.25mm, 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 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.


1.5 Ct Fluorite (Asscher) 1.5 Ct Alexandrite (Asscher)
6.59×6.59 mm vs 6.25×6.25 mm
39.95 mm²   35.94 mm²
Face-up size outline for 1.5ct Fluorite (6.59×6.59mm, asscher cut)
Face-up size outline for 1.5ct Alexandrite (6.25×6.25mm, asscher cut)
1.5ct Fluorite Asscher (6.59×6.59mm)
1.5ct Alexandrite Asscher (6.25×6.25mm)
Difference: 11% (4.01 mm²)
1.5ct Fluorite (Asscher, 6.59×6.59mm) has approx. 11% more face-up area than 1.5ct Alexandrite (Asscher, 6.25×6.25mm).


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