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2.5ct Ruby (Trillion, 9.92×9.92mm, Red) vs 2.5ct Pyrope (Trillion, 10.11×10.11mm, Red)


Quick summary: When looked from above (face-up position), 2.5ct Pyrope (10.11×10.11mm, trillion cut) appears 4% larger than 2.5ct Ruby (9.92×9.92mm, trillion cut). See below how they compare side-by-side on a ring and finger.

2.5ct Ruby (trillion cut)
vs
 2.5ct Pyrope (trillion cut)
red
 
red
9.92×9.92 mm 10.11×10.11 mm
actual size
Actual size of 2.5ct Ruby (trillion cut, 9.92×9.92mm, Red color)   Actual size of 2.5ct Pyrope (trillion cut, 10.11×10.11mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 2.5ct Ruby (trillion cut, 9.92×9.92mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 2.5ct Pyrope (trillion cut, 10.11×10.11mm) 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
 59% vs 60%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Ruby Trillion (9.92×9.92mm, Red) and 2.5ct Pyrope Trillion (10.11×10.11mm, 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.


2.5 Ct Ruby (Trillion) 2.5 Ct Pyrope (Trillion)
9.92×9.92 mm vs 10.11×10.11 mm
61.01 mm²   63.37 mm²
Face-up size outline for 2.5ct Pyrope (10.11×10.11mm, trillion cut)
Face-up size outline for 2.5ct Ruby (9.92×9.92mm, trillion cut)
2.5ct Ruby Trillion (9.92×9.92mm)
2.5ct Pyrope Trillion (10.11×10.11mm)
Difference: 4% (2.36 mm²)
2.5ct Pyrope (Trillion, 10.11×10.11mm) has approx. 4% more face-up area than 2.5ct Ruby (Trillion, 9.92×9.92mm).


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