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4.5ct Ruby (Cushion, 9.14×9.14mm, Red) vs 4.5ct Pyrope (Cushion, 9.31×9.31mm, Red)


Quick summary: When looked from above (face-up position), 4.5ct Pyrope (9.31×9.31mm, cushion cut) appears 4% larger than 4.5ct Ruby (9.14×9.14mm, cushion cut). See below how they compare side-by-side on a ring and finger.

4.5ct Ruby (cushion cut)
vs
4.5ct Pyrope (cushion cut)
red
 
red
9.14×9.14 mm 9.31×9.31 mm
actual size
Actual size of 4.5ct Ruby (cushion cut, 9.14×9.14mm, Red color)   Actual size of 4.5ct Pyrope (cushion cut, 9.31×9.31mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 4.5ct Ruby (cushion cut, 9.14×9.14mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 4.5ct Pyrope (cushion cut, 9.31×9.31mm) 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
55% vs 56%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4.5ct Ruby Cushion (9.14×9.14mm, Red) and 4.5ct Pyrope Cushion (9.31×9.31mm, Red) 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, Ruby will face-up smaller than Pyrope for a given carat weight, because it has higher specific gravity (4 vs. 3.78 - this means it's "heavier" compared to Pyrope 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 Ruby (Cushion) 4.5 Ct Pyrope (Cushion)
9.14×9.14 mm vs 9.31×9.31 mm
75.19 mm²   78.01 mm²
Face-up size outline for 4.5ct Pyrope (9.31×9.31mm, cushion cut)
Face-up size outline for 4.5ct Ruby (9.14×9.14mm, cushion cut)
4.5ct Ruby Cushion (9.14×9.14mm)
4.5ct Pyrope Cushion (9.31×9.31mm)
Difference: 4% (2.82 mm²)
4.5ct Pyrope (Cushion, 9.31×9.31mm) has approx. 4% more face-up area than 4.5ct Ruby (Cushion, 9.14×9.14mm).


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