×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

1ct Apatite (Emerald, 6.89×5.1mm, Green) vs 1ct Kyanite (Emerald, 6.56×4.86mm, Blue)


Quick summary: When looked from above (face-up position), 1ct Apatite (6.89×5.1mm, emerald cut) appears 10% larger than 1ct Kyanite (6.56×4.86mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1ct Apatite (emerald cut)
vs
 1ct Kyanite (emerald cut)
green
 
blue
6.89×5.1 mm 6.56×4.86 mm
actual size
Actual size of 1ct Apatite (emerald cut, 6.89×5.1mm, Green color)   Actual size of 1ct Kyanite (emerald cut, 6.56×4.86mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 1ct Apatite (emerald cut, 6.89×5.1mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1ct Kyanite (emerald cut, 6.56×4.86mm) 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
 31% vs 29%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1ct Apatite Emerald (6.89×5.1mm, Green) and 1ct Kyanite Emerald (6.56×4.86mm, 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 Apatite for a given carat weight, because it has higher specific gravity (3.68 vs. 3.2 - this means it's "heavier" compared to Apatite 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.


1 Ct Apatite (Emerald) 1 Ct Kyanite (Emerald)
6.89×5.1 mm vs 6.56×4.86 mm
32.68 mm²   29.65 mm²
Face-up size outline for 1ct Apatite (6.89×5.1mm, emerald cut)
Face-up size outline for 1ct Kyanite (6.56×4.86mm, emerald cut)
1ct Apatite Emerald (6.89×5.1mm)
1ct Kyanite Emerald (6.56×4.86mm)
Difference: 10% (3.03 mm²)
1ct Apatite (Emerald, 6.89×5.1mm) has approx. 10% more face-up area than 1ct Kyanite (Emerald, 6.56×4.86mm).


Popular comparisons: