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33ct Sapphire (Marquise, 31.18×15.59mm, Blue) vs 33ct Fluorite (Marquise, 33.66×16.83mm, Bluish Green)


Quick summary: When looked from above (face-up position), 33ct Fluorite (33.66×16.83mm, marquise cut) appears 17% larger than 33ct Sapphire (31.18×15.59mm, marquise cut). See below how they compare side-by-side on a ring and finger.

33ct Sapphire (marquise cut)
vs
 33ct Fluorite (marquise cut)
blue
 
bluish green
31.18×15.59 mm 33.66×16.83 mm
actual size
Actual size of 33ct Sapphire (marquise cut, 31.18×15.59mm, Blue color)   Actual size of 33ct Fluorite (marquise cut, 33.66×16.83mm, 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 33ct Sapphire (marquise cut, 31.18×15.59mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 33ct Fluorite (marquise cut, 33.66×16.83mm) 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
 93% vs 100%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 33ct Sapphire Marquise (31.18×15.59mm, Blue) and 33ct Fluorite Marquise (33.66×16.83mm, 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.


33 Ct Sapphire (Marquise) 33 Ct Fluorite (Marquise)
31.18×15.59 mm vs 33.66×16.83 mm
345.13 mm²   402.21 mm²
Face-up size outline for 33ct Fluorite (33.66×16.83mm, marquise cut)
Face-up size outline for 33ct Sapphire (31.18×15.59mm, marquise cut)
33ct Sapphire Marquise (31.18×15.59mm)
33ct Fluorite Marquise (33.66×16.83mm)
Difference: 17% (57.08 mm²)
33ct Fluorite (Marquise, 33.66×16.83mm) has approx. 17% more face-up area than 33ct Sapphire (Marquise, 31.18×15.59mm).


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