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4.5ct Diamond (Cushion, 9.62×9.62mm, White) vs 5ct Sapphire (Cushion, 9.56×9.56mm, Blue)


Quick summary: When looked from above (face-up position), 4.5ct Diamond (9.62×9.62mm, cushion cut) appears 1% larger than 5ct Sapphire (9.56×9.56mm, cushion cut). See below how they compare side-by-side on a ring and finger.

4.5ct Diamond (cushion cut)
vs
 5ct Sapphire (cushion cut)
white
 
blue
9.62×9.62 mm 9.56×9.56 mm
actual size
Actual size of 4.5ct Diamond (cushion cut, 9.62×9.62mm, White color)   Actual size of 5ct Sapphire (cushion cut, 9.56×9.56mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 4.5ct Diamond (cushion cut, 9.62×9.62mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5ct Sapphire (cushion cut, 9.56×9.56mm) 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
 57% vs 57%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4.5ct Diamond Cushion (9.62×9.62mm, White) and 5ct Sapphire Cushion (9.56×9.56mm, Blue) 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, Sapphire will face-up smaller than Diamond for a given carat weight, because it has higher specific gravity (4 vs. 3.52 - this means it's "heavier" compared to Diamond 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 Diamond (Cushion) 5 Ct Sapphire (Cushion)
9.62×9.62 mm vs 9.56×9.56 mm
83.29 mm²   82.25 mm²
Face-up size outline for 4.5ct Diamond (9.62×9.62mm, cushion cut)
Face-up size outline for 5ct Sapphire (9.56×9.56mm, cushion cut)
4.5ct Diamond Cushion (9.62×9.62mm)
5ct Sapphire Cushion (9.56×9.56mm)
Difference: 1% (1.04 mm²)
4.5ct Diamond (Cushion, 9.62×9.62mm) has approx. 1% more face-up area than 5ct Sapphire (Cushion, 9.56×9.56mm).


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