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10ct Kyanite (Oval, 16.98×11.32mm, Blue) vs 10ct Benitoite (Oval, 17.03×11.35mm, Blue)


Quick summary: When looked from above (face-up position), 10ct Benitoite (17.03×11.35mm, oval cut) appears 0.6% larger than 10ct Kyanite (16.98×11.32mm, oval cut). See below how they compare side-by-side on a ring and finger.

10ct Kyanite (oval cut)
vs
 10ct Benitoite (oval cut)
blue
 
blue
16.98×11.32 mm 17.03×11.35 mm
actual size
Actual size of 10ct Kyanite (oval cut, 16.98×11.32mm, Blue color)   Actual size of 10ct Benitoite (oval cut, 17.03×11.35mm, 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 (oval cut, 16.98×11.32mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 10ct Benitoite (oval cut, 17.03×11.35mm) 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
 67% vs 68%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Kyanite Oval (16.98×11.32mm, Blue) and 10ct Benitoite Oval (17.03×11.35mm, 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 (Oval) 10 Ct Benitoite (Oval)
16.98×11.32 mm vs 17.03×11.35 mm
157.62 mm²   158.5 mm²
Face-up size outline for 10ct Benitoite (17.03×11.35mm, oval cut)
Face-up size outline for 10ct Kyanite (16.98×11.32mm, oval cut)
10ct Kyanite Oval (16.98×11.32mm)
10ct Benitoite Oval (17.03×11.35mm)
Difference: 0.6% (0.88 mm²)
10ct Benitoite (Oval, 17.03×11.35mm) has approx. 0.6% more face-up area than 10ct Kyanite (Oval, 16.98×11.32mm).


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