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5.5ct Kyanite (Heart, 11.36×11.36mm, Blue) vs 5.5ct Benitoite (Heart, 11.39×11.39mm, Blue)


Quick summary: When looked from above (face-up position), 5.5ct Benitoite (11.39×11.39mm, heart cut) appears 0.5% larger than 5.5ct Kyanite (11.36×11.36mm, heart cut). See below how they compare side-by-side on a ring and finger.

5.5ct Kyanite (heart cut)
vs
5.5ct Benitoite (heart cut)
blue
 
blue
11.36×11.36 mm 11.39×11.39 mm
actual size
Actual size of 5.5ct Kyanite (heart cut, 11.36×11.36mm, Blue color)   Actual size of 5.5ct Benitoite (heart cut, 11.39×11.39mm, 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 (heart cut, 11.36×11.36mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5.5ct Benitoite (heart cut, 11.39×11.39mm) 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
68% vs 68%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5.5ct Kyanite Heart (11.36×11.36mm, Blue) and 5.5ct Benitoite Heart (11.39×11.39mm, 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 (Heart) 5.5 Ct Benitoite (Heart)
11.36×11.36 mm vs 11.39×11.39 mm
92.92 mm²   93.41 mm²
Face-up size outline for 5.5ct Benitoite (11.39×11.39mm, heart cut)
Face-up size outline for 5.5ct Kyanite (11.36×11.36mm, heart cut)
5.5ct Kyanite Heart (11.36×11.36mm)
5.5ct Benitoite Heart (11.39×11.39mm)
Difference: 0.5% (0.49 mm²)
5.5ct Benitoite (Heart, 11.39×11.39mm) has approx. 0.5% more face-up area than 5.5ct Kyanite (Heart, 11.36×11.36mm).


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