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5ct Tanzanite (Cushion, 10.04×10.04mm, Blue) vs 5ct Kyanite (Cushion, 9.73×9.73mm, Blue)


Quick summary: When looked from above (face-up position), 5ct Tanzanite (10.04×10.04mm, cushion cut) appears 6% larger than 5ct Kyanite (9.73×9.73mm, cushion cut). See below how they compare side-by-side on a ring and finger.

5ct Tanzanite (cushion cut)
vs
 5ct Kyanite (cushion cut)
blue
 
blue
10.04×10.04 mm 9.73×9.73 mm
actual size
Actual size of 5ct Tanzanite (cushion cut, 10.04×10.04mm, Blue color)   Actual size of 5ct Kyanite (cushion cut, 9.73×9.73mm, 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 Tanzanite (cushion cut, 10.04×10.04mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5ct Kyanite (cushion cut, 9.73×9.73mm) 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
 60% vs 58%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5ct Tanzanite Cushion (10.04×10.04mm, Blue) and 5ct Kyanite Cushion (9.73×9.73mm, 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 smaller than Tanzanite for a given carat weight, because it has higher specific gravity (3.68 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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 Tanzanite (Cushion) 5 Ct Kyanite (Cushion)
10.04×10.04 mm vs 9.73×9.73 mm
90.72 mm²   85.21 mm²
Face-up size outline for 5ct Tanzanite (10.04×10.04mm, cushion cut)
Face-up size outline for 5ct Kyanite (9.73×9.73mm, cushion cut)
5ct Tanzanite Cushion (10.04×10.04mm)
5ct Kyanite Cushion (9.73×9.73mm)
Difference: 6% (5.51 mm²)
5ct Tanzanite (Cushion, 10.04×10.04mm) has approx. 6% more face-up area than 5ct Kyanite (Cushion, 9.73×9.73mm).


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