×
carat vs. color  length*  width*
  ×

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

7ct Topaz (Emerald, 12.73×9.43mm, Blue) vs 5ct Sapphire (Emerald, 10.92×8.09mm, Blue)


Quick summary: When looked from above (face-up position), 7ct Topaz (12.73×9.43mm, emerald cut) appears 36% larger than 5ct Sapphire (10.92×8.09mm, emerald cut). See below how they compare side-by-side on a ring and finger.

7ct Topaz (emerald cut)
vs
 5ct Sapphire (emerald cut)
blue
 
blue
12.73×9.43 mm 10.92×8.09 mm
actual size
Actual size of 7ct Topaz (emerald cut, 12.73×9.43mm, Blue color)   Actual size of 5ct Sapphire (emerald cut, 10.92×8.09mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 7ct Topaz (emerald cut, 12.73×9.43mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5ct Sapphire (emerald cut, 10.92×8.09mm) 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
 56% vs 48%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 7ct Topaz Emerald (12.73×9.43mm, Blue) and 5ct Sapphire Emerald (10.92×8.09mm, 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, Sapphire will face-up smaller than Topaz for a given carat weight, because it has higher specific gravity (4 vs. 3.53 - this means it's "heavier" compared to Topaz 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.


7 Ct Topaz (Emerald) 5 Ct Sapphire (Emerald)
12.73×9.43 mm vs 10.92×8.09 mm
111.64 mm²   82.16 mm²
Face-up size outline for 7ct Topaz (12.73×9.43mm, emerald cut)
Face-up size outline for 5ct Sapphire (10.92×8.09mm, emerald cut)
7ct Topaz Emerald (12.73×9.43mm)
5ct Sapphire Emerald (10.92×8.09mm)
Difference: 36% (29.48 mm²)
7ct Topaz (Emerald, 12.73×9.43mm) has approx. 36% more face-up area than 5ct Sapphire (Emerald, 10.92×8.09mm).


Popular comparisons: