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15ct Sapphire (Asscher, 13.15×13.15mm, Blue) vs 15ct Fluorite (Asscher, 14.19×14.19mm, Bluish Green)


Quick summary: When looked from above (face-up position), 15ct Fluorite (14.19×14.19mm, asscher cut) appears 16% larger than 15ct Sapphire (13.15×13.15mm, asscher cut). See below how they compare side-by-side on a ring and finger.

15ct Sapphire (asscher cut)
vs
15ct Fluorite (asscher cut)
blue
 
bluish green
13.15×13.15 mm 14.19×14.19 mm
actual size
Actual size of 15ct Sapphire (asscher cut, 13.15×13.15mm, Blue color)   Actual size of 15ct Fluorite (asscher cut, 14.19×14.19mm, Bluish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 15ct Sapphire (asscher cut, 13.15×13.15mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 15ct Fluorite (asscher cut, 14.19×14.19mm) 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
78% vs 84%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Sapphire Asscher (13.15×13.15mm, Blue) and 15ct Fluorite Asscher (14.19×14.19mm, 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, Sapphire will face-up smaller than Fluorite for a given carat weight, because it has higher specific gravity (4 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.


15 Ct Sapphire (Asscher) 15 Ct Fluorite (Asscher)
13.15×13.15 mm vs 14.19×14.19 mm
159.09 mm²   185.25 mm²
Face-up size outline for 15ct Fluorite (14.19×14.19mm, asscher cut)
Face-up size outline for 15ct Sapphire (13.15×13.15mm, asscher cut)
15ct Sapphire Asscher (13.15×13.15mm)
15ct Fluorite Asscher (14.19×14.19mm)
Difference: 16% (26.16 mm²)
15ct Fluorite (Asscher, 14.19×14.19mm) has approx. 16% more face-up area than 15ct Sapphire (Asscher, 13.15×13.15mm).


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