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6ct Kyanite (Princess, 9.81×9.81mm, Blue) vs 6ct Benitoite (Princess, 9.84×9.84mm, Blue)


Quick summary: When looked from above (face-up position), 6ct Benitoite (9.84×9.84mm, princess cut) appears 0.6% larger than 6ct Kyanite (9.81×9.81mm, princess cut). See below how they compare side-by-side on a ring and finger.

6ct Kyanite (princess cut)
vs
 6ct Benitoite (princess cut)
blue
 
blue
9.81×9.81 mm 9.84×9.84 mm
actual size
Actual size of 6ct Kyanite (princess cut, 9.81×9.81mm, Blue color)   Actual size of 6ct Benitoite (princess cut, 9.84×9.84mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 6ct Kyanite (princess cut, 9.81×9.81mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 6ct Benitoite (princess cut, 9.84×9.84mm) 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
 59% vs 59%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 6ct Kyanite Princess (9.81×9.81mm, Blue) and 6ct Benitoite Princess (9.84×9.84mm, 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.


6 Ct Kyanite (Princess) 6 Ct Benitoite (Princess)
9.81×9.81 mm vs 9.84×9.84 mm
96.24 mm²   96.83 mm²
Face-up size outline for 6ct Benitoite (9.84×9.84mm, princess cut)
Face-up size outline for 6ct Kyanite (9.81×9.81mm, princess cut)
6ct Kyanite Princess (9.81×9.81mm)
6ct Benitoite Princess (9.84×9.84mm)
Difference: 0.6% (0.59 mm²)
6ct Benitoite (Princess, 9.84×9.84mm) has approx. 0.6% more face-up area than 6ct Kyanite (Princess, 9.81×9.81mm).


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