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19ct Kyanite (Cushion, 15.19×15.19mm, Blue) vs 19ct Sapphire (Cushion, 14.77×14.77mm, Blue)


Quick summary: When looked from above (face-up position), 19ct Kyanite (15.19×15.19mm, cushion cut) appears 6% larger than 19ct Sapphire (14.77×14.77mm, cushion cut). See below how they compare side-by-side on a ring and finger.

19ct Kyanite (cushion cut)
vs
 19ct Sapphire (cushion cut)
blue
 
blue
15.19×15.19 mm 14.77×14.77 mm
actual size
Actual size of 19ct Kyanite (cushion cut, 15.19×15.19mm, Blue color)   Actual size of 19ct Sapphire (cushion cut, 14.77×14.77mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 19ct Kyanite (cushion cut, 15.19×15.19mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 19ct Sapphire (cushion cut, 14.77×14.77mm) 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
 90% vs 88%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 19ct Kyanite Cushion (15.19×15.19mm, Blue) and 19ct Sapphire Cushion (14.77×14.77mm, 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, Sapphire will face-up smaller than Kyanite for a given carat weight, because it has higher specific gravity (4 vs. 3.68 - this means it's "heavier" compared to Kyanite 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.


19 Ct Kyanite (Cushion) 19 Ct Sapphire (Cushion)
15.19×15.19 mm vs 14.77×14.77 mm
207.66 mm²   196.34 mm²
Face-up size outline for 19ct Kyanite (15.19×15.19mm, cushion cut)
Face-up size outline for 19ct Sapphire (14.77×14.77mm, cushion cut)
19ct Kyanite Cushion (15.19×15.19mm)
19ct Sapphire Cushion (14.77×14.77mm)
Difference: 6% (11.32 mm²)
19ct Kyanite (Cushion, 15.19×15.19mm) has approx. 6% more face-up area than 19ct Sapphire (Cushion, 14.77×14.77mm).


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