×
carat vs. color  length*  width*
  ×

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

6ct Tanzanite (Oval, 14.78×9.85mm, Blue) vs 6ct Kyanite (Oval, 14.33×9.55mm, Blue)


Quick summary: When looked from above (face-up position), 6ct Tanzanite (14.78×9.85mm, oval cut) appears 6% larger than 6ct Kyanite (14.33×9.55mm, oval cut). See below how they compare side-by-side on a ring and finger.

6ct Tanzanite (oval cut)
vs
 6ct Kyanite (oval cut)
blue
 
blue
14.78×9.85 mm 14.33×9.55 mm
actual size
Actual size of 6ct Tanzanite (oval cut, 14.78×9.85mm, Blue color)   Actual size of 6ct Kyanite (oval cut, 14.33×9.55mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 6ct Tanzanite (oval cut, 14.78×9.85mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 6ct Kyanite (oval cut, 14.33×9.55mm) 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
 59% vs 57%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 6ct Tanzanite Oval (14.78×9.85mm, Blue) and 6ct Kyanite Oval (14.33×9.55mm, 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.


6 Ct Tanzanite (Oval) 6 Ct Kyanite (Oval)
14.78×9.85 mm vs 14.33×9.55 mm
119.38 mm²   112.22 mm²
Face-up size outline for 6ct Tanzanite (14.78×9.85mm, oval cut)
Face-up size outline for 6ct Kyanite (14.33×9.55mm, oval cut)
6ct Tanzanite Oval (14.78×9.85mm)
6ct Kyanite Oval (14.33×9.55mm)
Difference: 6% (7.16 mm²)
6ct Tanzanite (Oval, 14.78×9.85mm) has approx. 6% more face-up area than 6ct Kyanite (Oval, 14.33×9.55mm).


Popular comparisons: