×
carat vs. color  length*  width*
  ×

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

8ct Tourmaline (Emerald, 13.96×10.34mm, Purple) vs 8ct Sapphire (Emerald, 12.77×9.46mm, Blue)


Quick summary: When looked from above (face-up position), 8ct Tourmaline (13.96×10.34mm, emerald cut) appears 19% larger than 8ct Sapphire (12.77×9.46mm, emerald cut). See below how they compare side-by-side on a ring and finger.

8ct Tourmaline (emerald cut)
vs
8ct Sapphire (emerald cut)
purple
 
blue
13.96×10.34 mm 12.77×9.46 mm
actual size
Actual size of 8ct Tourmaline (emerald cut, 13.96×10.34mm, Purple color)   Actual size of 8ct Sapphire (emerald cut, 12.77×9.46mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 8ct Tourmaline (emerald cut, 13.96×10.34mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 8ct Sapphire (emerald cut, 12.77×9.46mm) 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
62% vs 56%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 8ct Tourmaline Emerald (13.96×10.34mm, Purple) and 8ct Sapphire Emerald (12.77×9.46mm, 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 Tourmaline for a given carat weight, because it has higher specific gravity (4 vs. 3.06 - this means it's "heavier" compared to Tourmaline 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 Tourmaline (Emerald) 8 Ct Sapphire (Emerald)
13.96×10.34 mm vs 12.77×9.46 mm
134.24 mm²   112.35 mm²
Face-up size outline for 8ct Tourmaline (13.96×10.34mm, emerald cut)
Face-up size outline for 8ct Sapphire (12.77×9.46mm, emerald cut)
8ct Tourmaline Emerald (13.96×10.34mm)
8ct Sapphire Emerald (12.77×9.46mm)
Difference: 19% (21.89 mm²)
8ct Tourmaline (Emerald, 13.96×10.34mm) has approx. 19% more face-up area than 8ct Sapphire (Emerald, 12.77×9.46mm).


Popular comparisons: