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5ct Benitoite (Trillion, 12.39×12.39mm, Blue) vs 5ct Kyanite (Pear, 14.61×8.8mm, Blue)


Quick summary: When looked from above (face-up position), 5ct Benitoite (12.39×12.39mm, trillion cut) appears 1% larger than 5ct Kyanite (14.61×8.8mm, pear cut). See below how they compare side-by-side on a ring and finger.

5ct Benitoite (trillion cut)
vs
 5ct Kyanite (pear cut)
blue
 
blue
12.39×12.39 mm 14.61×8.8 mm
actual size
Actual size of 5ct Benitoite (trillion cut, 12.39×12.39mm, Blue color)   Actual size of 5ct Kyanite (pear cut, 14.61×8.8mm, 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 Benitoite (trillion cut, 12.39×12.39mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5ct Kyanite (pear cut, 14.61×8.8mm) 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
 74% vs 53%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Benitoite Trillion (12.39×12.39mm, Blue) and 5ct Kyanite Pear (14.61×8.8mm, 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 Ct Benitoite (Trillion) 5 Ct Kyanite (Pear)
12.39×12.39 mm vs 14.61×8.8 mm
95.18 mm²   93.85 mm²
Face-up size outline for 5ct Benitoite (12.39×12.39mm, trillion cut)
Face-up size outline for 5ct Kyanite (14.61×8.8mm, pear cut)
5ct Benitoite Trillion (12.39×12.39mm)
5ct Kyanite Pear (14.61×8.8mm)
Difference: 1% (1.33 mm²)
5ct Benitoite (Trillion, 12.39×12.39mm) has approx. 1% more face-up area than 5ct Kyanite (Pear, 14.61×8.8mm).


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