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16ct Sapphire (Round, 15.06×15.06mm, Blue) vs 16ct Fluorite (Round, 16.26×16.26mm, Bluish Green)


Quick summary: When looked from above (face-up position), 16ct Fluorite (16.26×16.26mm, round cut) appears 17% larger than 16ct Sapphire (15.06×15.06mm, round cut). See below how they compare side-by-side on a ring and finger.

16ct Sapphire (round cut)
vs
 16ct Fluorite (round cut)
blue
 
bluish green
15.06×15.06 mm 16.26×16.26 mm
actual size
Actual size of 16ct Sapphire (round cut, 15.06×15.06mm, Blue color)   Actual size of 16ct Fluorite (round cut, 16.26×16.26mm, 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 16ct Sapphire (round cut, 15.06×15.06mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 16ct Fluorite (round cut, 16.26×16.26mm) 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
 90% vs 97%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 16ct Sapphire Round (15.06×15.06mm, Blue) and 16ct Fluorite Round (16.26×16.26mm, 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.


16 Ct Sapphire (Round) 16 Ct Fluorite (Round)
15.06×15.06 mm vs 16.26×16.26 mm
178.13 mm²   207.65 mm²
Face-up size outline for 16ct Fluorite (16.26×16.26mm, round cut)
Face-up size outline for 16ct Sapphire (15.06×15.06mm, round cut)
16ct Sapphire Round (15.06×15.06mm)
16ct Fluorite Round (16.26×16.26mm)
Difference: 17% (29.52 mm²)
16ct Fluorite (Round, 16.26×16.26mm) has approx. 17% more face-up area than 16ct Sapphire (Round, 15.06×15.06mm).


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