×
carat vs. color  length*  width*
  ×

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

5.5ct Kyanite (Asscher, 9.68×9.68mm, Blue) vs 5.5ct Benitoite (Asscher, 9.7×9.7mm, Blue)


Quick summary: When looked from above (face-up position), 5.5ct Benitoite (9.7×9.7mm, asscher cut) appears 0.4% larger than 5.5ct Kyanite (9.68×9.68mm, asscher cut). See below how they compare side-by-side on a ring and finger.

5.5ct Kyanite (asscher cut)
vs
5.5ct Benitoite (asscher cut)
blue
 
blue
9.68×9.68 mm 9.7×9.7 mm
actual size
Actual size of 5.5ct Kyanite (asscher cut, 9.68×9.68mm, Blue color)   Actual size of 5.5ct Benitoite (asscher cut, 9.7×9.7mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 5.5ct Kyanite (asscher cut, 9.68×9.68mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5.5ct Benitoite (asscher cut, 9.7×9.7mm) 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
58% vs 58%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5.5ct Kyanite Asscher (9.68×9.68mm, Blue) and 5.5ct Benitoite Asscher (9.7×9.7mm, 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 slightly smaller than Benitoite for a given carat weight, because it has higher specific gravity (3.68 vs. 3.65 - this means it's "slightly heavier" compared to Benitoite 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.


5.5 Ct Kyanite (Asscher) 5.5 Ct Benitoite (Asscher)
9.68×9.68 mm vs 9.7×9.7 mm
86.21 mm²   86.56 mm²
Face-up size outline for 5.5ct Benitoite (9.7×9.7mm, asscher cut)
Face-up size outline for 5.5ct Kyanite (9.68×9.68mm, asscher cut)
5.5ct Kyanite Asscher (9.68×9.68mm)
5.5ct Benitoite Asscher (9.7×9.7mm)
Difference: 0.4% (0.35 mm²)
5.5ct Benitoite (Asscher, 9.7×9.7mm) has approx. 0.4% more face-up area than 5.5ct Kyanite (Asscher, 9.68×9.68mm).


Popular comparisons: