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4.5ct Kunzite (Cushion, 9.86×9.86mm, Light Purple) vs 4.5ct Diaspore (Cushion, 9.65×9.65mm, Light Yellowish Green)


Quick summary: When looked from above (face-up position), 4.5ct Kunzite (9.86×9.86mm, cushion cut) appears 4% larger than 4.5ct Diaspore (9.65×9.65mm, cushion cut). See below how they compare side-by-side on a ring and finger.

4.5ct Kunzite (cushion cut)
vs
 4.5ct Diaspore (cushion cut)
light purple
 
light yellowish green
9.86×9.86 mm 9.65×9.65 mm
actual size
Actual size of 4.5ct Kunzite (cushion cut, 9.86×9.86mm, Light Purple color)   Actual size of 4.5ct Diaspore (cushion cut, 9.65×9.65mm, 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 4.5ct Kunzite (cushion cut, 9.86×9.86mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Yellowish Green 4.5ct Diaspore (cushion cut, 9.65×9.65mm) 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
 59% vs 58%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4.5ct Kunzite Cushion (9.86×9.86mm, Light Purple) and 4.5ct Diaspore Cushion (9.65×9.65mm, 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.


4.5 Ct Kunzite (Cushion) 4.5 Ct Diaspore (Cushion)
9.86×9.86 mm vs 9.65×9.65 mm
87.5 mm²   83.81 mm²
Face-up size outline for 4.5ct Kunzite (9.86×9.86mm, cushion cut)
Face-up size outline for 4.5ct Diaspore (9.65×9.65mm, cushion cut)
4.5ct Kunzite Cushion (9.86×9.86mm)
4.5ct Diaspore Cushion (9.65×9.65mm)
Difference: 4% (3.69 mm²)
4.5ct Kunzite (Cushion, 9.86×9.86mm) has approx. 4% more face-up area than 4.5ct Diaspore (Cushion, 9.65×9.65mm).


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