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4.13ct Sapphire (Cushion, 9.91×7.48mm, Blue) vs 4.13ct Diamond (Cushion, 9.35×9.35mm, White)


Quick summary: When looked from above (face-up position), 4.13ct Diamond (9.35×9.35mm, cushion cut) appears 18% larger than 4.13ct Sapphire (9.91×7.48mm, cushion cut). See below how they compare side-by-side on a ring and finger.

4.13ct Sapphire (cushion cut)
vs
 4.13ct Diamond (cushion cut)
blue
 
white
9.91×7.48 mm 9.35×9.35 mm
actual size
Actual size of 4.13ct Sapphire (cushion cut, 9.91×7.48mm, Blue color)   Actual size of 4.13ct Diamond (cushion cut, 9.35×9.35mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 4.13ct Sapphire (cushion cut, 9.91×7.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 4.13ct Diamond (cushion cut, 9.35×9.35mm) 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
 45% vs 56%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4.13ct Sapphire Cushion (9.91×7.48mm, Blue) and 4.13ct Diamond Cushion (9.35×9.35mm, White) 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.


4.13 Ct Sapphire (Cushion) 4.13 Ct Diamond (Cushion)
9.91×7.48 mm vs 9.35×9.35 mm
66.71 mm²   78.68 mm²
Face-up size outline for 4.13ct Diamond (9.35×9.35mm, cushion cut)
Face-up size outline for 4.13ct Sapphire (9.91×7.48mm, cushion cut)
4.13ct Sapphire Cushion (9.91×7.48mm)
4.13ct Diamond Cushion (9.35×9.35mm)
Difference: 18% (11.97 mm²)
4.13ct Diamond (Cushion, 9.35×9.35mm) has approx. 18% more face-up area than 4.13ct Sapphire (Cushion, 9.91×7.48mm).


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