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15ct Ruby (Cushion, 13.79×13.79mm, Red) vs 15ct Chrysoberyl (Cushion, 14.15×14.15mm, Light Yellowish Green)


Quick summary: When looked from above (face-up position), 15ct Chrysoberyl (14.15×14.15mm, cushion cut) appears 5% larger than 15ct Ruby (13.79×13.79mm, cushion cut). See below how they compare side-by-side on a ring and finger.

15ct Ruby (cushion cut)
vs
15ct Chrysoberyl (cushion cut)
red
 
light yellowish green
13.79×13.79 mm 14.15×14.15 mm
actual size
Actual size of 15ct Ruby (cushion cut, 13.79×13.79mm, Red color)   Actual size of 15ct Chrysoberyl (cushion cut, 14.15×14.15mm, 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
Red 15ct Ruby (cushion cut, 13.79×13.79mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Yellowish Green 15ct Chrysoberyl (cushion cut, 14.15×14.15mm) 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
82% vs 84%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 15ct Ruby Cushion (13.79×13.79mm, Red) and 15ct Chrysoberyl Cushion (14.15×14.15mm, 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, Ruby will face-up smaller than Chrysoberyl for a given carat weight, because it has higher specific gravity (4 vs. 3.73 - this means it's "heavier" compared to Chrysoberyl 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.


15 Ct Ruby (Cushion) 15 Ct Chrysoberyl (Cushion)
13.79×13.79 mm vs 14.15×14.15 mm
171.15 mm²   180.2 mm²
Face-up size outline for 15ct Chrysoberyl (14.15×14.15mm, cushion cut)
Face-up size outline for 15ct Ruby (13.79×13.79mm, cushion cut)
15ct Ruby Cushion (13.79×13.79mm)
15ct Chrysoberyl Cushion (14.15×14.15mm)
Difference: 5% (9.05 mm²)
15ct Chrysoberyl (Cushion, 14.15×14.15mm) has approx. 5% more face-up area than 15ct Ruby (Cushion, 13.79×13.79mm).


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