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2.5ct Kunzite (Cabochon, 10.02×6.68mm, Light Purple) vs 2.5ct Diaspore (Cabochon, 9.81×6.54mm, Light Yellowish Green)


Quick summary: When looked from above (face-up position), 2.5ct Kunzite (10.02×6.68mm, cabochon cut) appears 4% larger than 2.5ct Diaspore (9.81×6.54mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

2.5ct Kunzite (cabochon cut)
vs
 2.5ct Diaspore (cabochon cut)
light purple
 
light yellowish green
10.02×6.68 mm 9.81×6.54 mm
actual size
Actual size of 2.5ct Kunzite (cabochon cut, 10.02×6.68mm, Light Purple color)   Actual size of 2.5ct Diaspore (cabochon cut, 9.81×6.54mm, Light 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 2.5ct Kunzite (cabochon cut, 10.02×6.68mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Yellowish Green 2.5ct Diaspore (cabochon cut, 9.81×6.54mm) 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
 40% vs 39%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Kunzite Cabochon (10.02×6.68mm, Light Purple) and 2.5ct Diaspore Cabochon (9.81×6.54mm, Light 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, Diaspore will face-up smaller than Kunzite for a given carat weight, because it has higher specific gravity (3.4 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.


2.5 Ct Kunzite (Cabochon) 2.5 Ct Diaspore (Cabochon)
10.02×6.68 mm vs 9.81×6.54 mm
54.89 mm²   52.61 mm²
Face-up size outline for 2.5ct Kunzite (10.02×6.68mm, cabochon cut)
Face-up size outline for 2.5ct Diaspore (9.81×6.54mm, cabochon cut)
2.5ct Kunzite Cabochon (10.02×6.68mm)
2.5ct Diaspore Cabochon (9.81×6.54mm)
Difference: 4% (2.28 mm²)
2.5ct Kunzite (Cabochon, 10.02×6.68mm) has approx. 4% more face-up area than 2.5ct Diaspore (Cabochon, 9.81×6.54mm).


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