×
carat vs. color  length*  width*
  ×

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

5ct Kyanite (Emerald, 11.23×8.32mm, Blue) vs 5ct Tanzanite (Emerald, 11.64×8.62mm, Blue)


Quick summary: When looked from above (face-up position), 5ct Tanzanite (11.64×8.62mm, emerald cut) appears 7% larger than 5ct Kyanite (11.23×8.32mm, emerald cut). See below how they compare side-by-side on a ring and finger.

5ct Kyanite (emerald cut)
vs
 5ct Tanzanite (emerald cut)
blue
 
blue
11.23×8.32 mm 11.64×8.62 mm
actual size
Actual size of 5ct Kyanite (emerald cut, 11.23×8.32mm, Blue color)   Actual size of 5ct Tanzanite (emerald cut, 11.64×8.62mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 5ct Kyanite (emerald cut, 11.23×8.32mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5ct Tanzanite (emerald cut, 11.64×8.62mm) 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
 50% vs 52%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5ct Kyanite Emerald (11.23×8.32mm, Blue) and 5ct Tanzanite Emerald (11.64×8.62mm, 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, Kyanite will face-up smaller than Tanzanite for a given carat weight, because it has higher specific gravity (3.68 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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.


5 Ct Kyanite (Emerald) 5 Ct Tanzanite (Emerald)
11.23×8.32 mm vs 11.64×8.62 mm
86.89 mm²   93.31 mm²
Face-up size outline for 5ct Tanzanite (11.64×8.62mm, emerald cut)
Face-up size outline for 5ct Kyanite (11.23×8.32mm, emerald cut)
5ct Kyanite Emerald (11.23×8.32mm)
5ct Tanzanite Emerald (11.64×8.62mm)
Difference: 7% (6.42 mm²)
5ct Tanzanite (Emerald, 11.64×8.62mm) has approx. 7% more face-up area than 5ct Kyanite (Emerald, 11.23×8.32mm).


Popular comparisons: