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10ct Kyanite (Emerald, 14.15×10.48mm, Blue) vs 10ct Benitoite (Emerald, 14.19×10.51mm, Blue)


Quick summary: When looked from above (face-up position), 10ct Benitoite (14.19×10.51mm, emerald cut) appears 0.6% larger than 10ct Kyanite (14.15×10.48mm, emerald cut). See below how they compare side-by-side on a ring and finger.

10ct Kyanite (emerald cut)
vs
 10ct Benitoite (emerald cut)
blue
 
blue
14.15×10.48 mm 14.19×10.51 mm
actual size
Actual size of 10ct Kyanite (emerald cut, 14.15×10.48mm, Blue color)   Actual size of 10ct Benitoite (emerald cut, 14.19×10.51mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 10ct Kyanite (emerald cut, 14.15×10.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 10ct Benitoite (emerald cut, 14.19×10.51mm) 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
 63% vs 63%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Kyanite Emerald (14.15×10.48mm, Blue) and 10ct Benitoite Emerald (14.19×10.51mm, 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.


10 Ct Kyanite (Emerald) 10 Ct Benitoite (Emerald)
14.15×10.48 mm vs 14.19×10.51 mm
137.91 mm²   138.7 mm²
Face-up size outline for 10ct Benitoite (14.19×10.51mm, emerald cut)
Face-up size outline for 10ct Kyanite (14.15×10.48mm, emerald cut)
10ct Kyanite Emerald (14.15×10.48mm)
10ct Benitoite Emerald (14.19×10.51mm)
Difference: 0.6% (0.79 mm²)
10ct Benitoite (Emerald, 14.19×10.51mm) has approx. 0.6% more face-up area than 10ct Kyanite (Emerald, 14.15×10.48mm).


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