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5.5ct Ruby (Trillion, 12.9×12.9mm, Red) vs 5.5ct Pyrope (Trillion, 13.15×13.15mm, Red)


Quick summary: When looked from above (face-up position), 5.5ct Pyrope (13.15×13.15mm, trillion cut) appears 4% larger than 5.5ct Ruby (12.9×12.9mm, trillion cut). See below how they compare side-by-side on a ring and finger.

5.5ct Ruby (trillion cut)
vs
 5.5ct Pyrope (trillion cut)
red
 
red
12.9×12.9 mm 13.15×13.15 mm
actual size
Actual size of 5.5ct Ruby (trillion cut, 12.9×12.9mm, Red color)   Actual size of 5.5ct Pyrope (trillion cut, 13.15×13.15mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 5.5ct Ruby (trillion cut, 12.9×12.9mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 5.5ct Pyrope (trillion cut, 13.15×13.15mm) 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
 77% vs 78%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5.5ct Ruby Trillion (12.9×12.9mm, Red) and 5.5ct Pyrope Trillion (13.15×13.15mm, 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.


5.5 Ct Ruby (Trillion) 5.5 Ct Pyrope (Trillion)
12.9×12.9 mm vs 13.15×13.15 mm
103.17 mm²   107.21 mm²
Face-up size outline for 5.5ct Pyrope (13.15×13.15mm, trillion cut)
Face-up size outline for 5.5ct Ruby (12.9×12.9mm, trillion cut)
5.5ct Ruby Trillion (12.9×12.9mm)
5.5ct Pyrope Trillion (13.15×13.15mm)
Difference: 4% (4.04 mm²)
5.5ct Pyrope (Trillion, 13.15×13.15mm) has approx. 4% more face-up area than 5.5ct Ruby (Trillion, 12.9×12.9mm).


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