×
carat vs. color  length*  width*
  ×

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

10ct Kunzite (Round, 13.9×13.9mm, Light Purple) vs 10ct Alexandrite (Oval, 16.73×11.15mm, Dark Yellowish Green)


Quick summary: When looked from above (face-up position), 10ct Alexandrite (16.73×11.15mm, oval cut) appears 0.8% larger than 10ct Kunzite (13.9×13.9mm, round cut). See below how they compare side-by-side on a ring and finger.

10ct Kunzite (round cut)
vs
 10ct Alexandrite (oval cut)
light purple
 
dark yellowish green
13.9×13.9 mm 16.73×11.15 mm
actual size
Actual size of 10ct Kunzite (round cut, 13.9×13.9mm, Light Purple color)   Actual size of 10ct Alexandrite (oval cut, 16.73×11.15mm, Dark Yellowish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Purple 10ct Kunzite (round cut, 13.9×13.9mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Dark Yellowish Green 10ct Alexandrite (oval cut, 16.73×11.15mm) 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
 83% vs 66%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 10ct Kunzite Round (13.9×13.9mm, Light Purple) and 10ct Alexandrite Oval (16.73×11.15mm, Dark Yellowish Green) 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, Alexandrite will face-up smaller than Kunzite for a given carat weight, because it has higher specific gravity (3.73 vs. 3.18 - this means it's "heavier" compared to Kunzite 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.


10 Ct Kunzite (Round) 10 Ct Alexandrite (Oval)
13.9×13.9 mm vs 16.73×11.15 mm
151.75 mm²   152.96 mm²
Face-up size outline for 10ct Alexandrite (16.73×11.15mm, oval cut)
Face-up size outline for 10ct Kunzite (13.9×13.9mm, round cut)
10ct Kunzite Round (13.9×13.9mm)
10ct Alexandrite Oval (16.73×11.15mm)
Difference: 0.8% (1.21 mm²)
10ct Alexandrite (Oval, 16.73×11.15mm) has approx. 0.8% more face-up area than 10ct Kunzite (Round, 13.9×13.9mm).


Popular comparisons: