×
carat vs. color  length*  width*
  ×

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

36ct Fluorite (Princess, 18.72×18.72mm, Bluish Green) vs 36ct Topaz (Princess, 18.08×18.08mm, Blue)


Quick summary: When looked from above (face-up position), 36ct Fluorite (18.72×18.72mm, princess cut) appears 7% larger than 36ct Topaz (18.08×18.08mm, princess cut). See below how they compare side-by-side on a ring and finger.

36ct Fluorite (princess cut)
vs
36ct Topaz (princess cut)
bluish green
 
blue
18.72×18.72 mm 18.08×18.08 mm
actual size
Actual size of 36ct Fluorite (princess cut, 18.72×18.72mm, Bluish Green color)   Actual size of 36ct Topaz (princess cut, 18.08×18.08mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 36ct Fluorite (princess cut, 18.72×18.72mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 36ct Topaz (princess cut, 18.08×18.08mm) 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
111% vs 107%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 36ct Fluorite Princess (18.72×18.72mm, Bluish Green) and 36ct Topaz Princess (18.08×18.08mm, Blue) 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, Topaz will face-up smaller than Fluorite for a given carat weight, because it has higher specific gravity (3.53 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.


36 Ct Fluorite (Princess) 36 Ct Topaz (Princess)
18.72×18.72 mm vs 18.08×18.08 mm
350.44 mm²   326.89 mm²
Face-up size outline for 36ct Fluorite (18.72×18.72mm, princess cut)
Face-up size outline for 36ct Topaz (18.08×18.08mm, princess cut)
36ct Fluorite Princess (18.72×18.72mm)
36ct Topaz Princess (18.08×18.08mm)
Difference: 7% (23.55 mm²)
36ct Fluorite (Princess, 18.72×18.72mm) has approx. 7% more face-up area than 36ct Topaz (Princess, 18.08×18.08mm).


Popular comparisons: