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26ct Kyanite (Round, 18.21×18.21mm, Blue) vs 26ct Sapphire (Round, 17.71×17.71mm, Blue)


Quick summary: When looked from above (face-up position), 26ct Kyanite (18.21×18.21mm, round cut) appears 6% larger than 26ct Sapphire (17.71×17.71mm, round cut). See below how they compare side-by-side on a ring and finger.

26ct Kyanite (round cut)
vs
 26ct Sapphire (round cut)
blue
 
blue
18.21×18.21 mm 17.71×17.71 mm
actual size
Actual size of 26ct Kyanite (round cut, 18.21×18.21mm, Blue color)   Actual size of 26ct Sapphire (round cut, 17.71×17.71mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 26ct Kyanite (round cut, 18.21×18.21mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 26ct Sapphire (round cut, 17.71×17.71mm) 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
 108% vs 105%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 26ct Kyanite Round (18.21×18.21mm, Blue) and 26ct Sapphire Round (17.71×17.71mm, 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.


26 Ct Kyanite (Round) 26 Ct Sapphire (Round)
18.21×18.21 mm vs 17.71×17.71 mm
260.44 mm²   246.34 mm²
Face-up size outline for 26ct Kyanite (18.21×18.21mm, round cut)
Face-up size outline for 26ct Sapphire (17.71×17.71mm, round cut)
26ct Kyanite Round (18.21×18.21mm)
26ct Sapphire Round (17.71×17.71mm)
Difference: 6% (14.1 mm²)
26ct Kyanite (Round, 18.21×18.21mm) has approx. 6% more face-up area than 26ct Sapphire (Round, 17.71×17.71mm).


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