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15ct Diaspore (Asscher, 13.88×13.88mm, Light Yellowish Green) vs 15ct Alexandrite (Asscher, 13.46×13.46mm, Bluish Green)


Quick summary: When looked from above (face-up position), 15ct Diaspore (13.88×13.88mm, asscher cut) appears 6% larger than 15ct Alexandrite (13.46×13.46mm, asscher cut). See below how they compare side-by-side on a ring and finger.

15ct Diaspore (asscher cut)
vs
 15ct Alexandrite (asscher cut)
light yellowish green
 
bluish green
13.88×13.88 mm 13.46×13.46 mm
actual size
Actual size of 15ct Diaspore (asscher cut, 13.88×13.88mm, Light Yellowish Green color)   Actual size of 15ct Alexandrite (asscher cut, 13.46×13.46mm, Bluish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Yellowish Green 15ct Diaspore (asscher cut, 13.88×13.88mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 15ct Alexandrite (asscher cut, 13.46×13.46mm) 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 80%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Diaspore Asscher (13.88×13.88mm, Light Yellowish Green) and 15ct Alexandrite Asscher (13.46×13.46mm, Bluish 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 Diaspore for a given carat weight, because it has higher specific gravity (3.73 vs. 3.4 - this means it's "heavier" compared to Diaspore 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.


15 Ct Diaspore (Asscher) 15 Ct Alexandrite (Asscher)
13.88×13.88 mm vs 13.46×13.46 mm
177.24 mm²   166.68 mm²
Face-up size outline for 15ct Diaspore (13.88×13.88mm, asscher cut)
Face-up size outline for 15ct Alexandrite (13.46×13.46mm, asscher cut)
15ct Diaspore Asscher (13.88×13.88mm)
15ct Alexandrite Asscher (13.46×13.46mm)
Difference: 6% (10.56 mm²)
15ct Diaspore (Asscher, 13.88×13.88mm) has approx. 6% more face-up area than 15ct Alexandrite (Asscher, 13.46×13.46mm).


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