Carat vs. Color  Length*  Width*

(or examine a single gem)
* size in mm (optional)

8 Ct Fluorite (Round)

versus image

8 Ct Emerald (Emerald)

Bluish Green
12.91×12.91 mm 14.55×10.78 mm
Actual size of 8ct Fluorite
Actual size of 8ct Emerald

x Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 8ct Fluorite on a ring
64 mm
Right finger image
Ring on a right finger
Green 8ct Emerald on a ring
Your settings
Skin tone
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
Ring diameter: 16.9 mm
Actual sizes of 8ct Fluorite Round (12.91×12.91mm, Bluish Green) and 8ct Emerald Emerald (14.55×10.78mm, 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.

Face-up Size

All things being equal, Fluorite will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.18 vs. 2.7 - this means it's "heavier" compared to Emerald 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.

8 Ct Fluorite (Round) 8 Ct Emerald (Emerald)
12.91×12.91 mm → 130.9 mm² vs. 145.87 mm² ← 14.55×10.78 mm
Face-up size outline
Face-up size outline
8ct Fluorite Round (12.91×12.91mm)
8ct Emerald Emerald (14.55×10.78mm)
Difference: 11% (14.97 mm²)
8ct Emerald Emerald (14.55×10.78mm) has approx. 11% more face-up area than 8ct Fluorite Round (12.91×12.91mm).

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