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5ct Diamond (Cushion, 10.5×9.4mm, White) vs 20ct Morganite (Cushion, 17.3×17.3mm, Light Purple)


Quick summary: When looked from above (face-up position), 20ct Morganite (17.3×17.3mm, cushion cut) appears 3 times larger than 5ct Diamond (10.5×9.4mm, cushion cut). See below how they compare side-by-side on a ring and finger.

5ct Diamond (cushion cut)
vs
 20ct Morganite (cushion cut)
white
 
light purple
10.5×9.4 mm 17.3×17.3 mm
actual size
Actual size of 5ct Diamond (cushion cut, 10.5×9.4mm, White color)   Actual size of 20ct Morganite (cushion cut, 17.3×17.3mm, Light Purple color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 5ct Diamond (cushion cut, 10.5×9.4mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Purple 20ct Morganite (cushion cut, 17.3×17.3mm) 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
 56% vs 103%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Diamond Cushion (10.5×9.4mm, White) and 20ct Morganite Cushion (17.3×17.3mm, Light Purple) 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, Diamond will face-up smaller than Morganite for a given carat weight, because it has higher specific gravity (3.52 vs. 2.8 - this means it's "heavier" compared to Morganite 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.


5 Ct Diamond (Cushion) 20 Ct Morganite (Cushion)
10.5×9.4 mm vs 17.3×17.3 mm
88.83 mm²   269.36 mm²
Face-up size outline for 20ct Morganite (17.3×17.3mm, cushion cut)
Face-up size outline for 5ct Diamond (10.5×9.4mm, cushion cut)
5ct Diamond Cushion (10.5×9.4mm)
20ct Morganite Cushion (17.3×17.3mm)
Difference: 203% (180.53 mm²)
20ct Morganite (Cushion, 17.3×17.3mm) has approx. 203% more face-up area than 5ct Diamond (Cushion, 10.5×9.4mm). In other words, it's 3.03x larger.


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