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2.5ct Pyrope (Heart, 8.66×8.66mm, Red) vs 2.5ct Spinel (Heart, 8.8×8.8mm, Red)


Quick summary: When looked from above (face-up position), 2.5ct Spinel (8.8×8.8mm, heart cut) appears 3% larger than 2.5ct Pyrope (8.66×8.66mm, heart cut). See below how they compare side-by-side on a ring and finger.

2.5ct Pyrope (heart cut)
vs
2.5ct Spinel (heart cut)
red
 
red
8.66×8.66 mm 8.8×8.8 mm
actual size
Actual size of 2.5ct Pyrope (heart cut, 8.66×8.66mm, Red color)   Actual size of 2.5ct Spinel (heart cut, 8.8×8.8mm, 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 Pyrope (heart cut, 8.66×8.66mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 2.5ct Spinel (heart cut, 8.8×8.8mm) 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
52% vs 53%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2.5ct Pyrope Heart (8.66×8.66mm, Red) and 2.5ct Spinel Heart (8.8×8.8mm, 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, Pyrope will face-up smaller than Spinel for a given carat weight, because it has higher specific gravity (3.78 vs. 3.6 - this means it's "heavier" compared to Spinel 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 Pyrope (Heart) 2.5 Ct Spinel (Heart)
8.66×8.66 mm vs 8.8×8.8 mm
54 mm²   55.76 mm²
Face-up size outline for 2.5ct Spinel (8.8×8.8mm, heart cut)
Face-up size outline for 2.5ct Pyrope (8.66×8.66mm, heart cut)
2.5ct Pyrope Heart (8.66×8.66mm)
2.5ct Spinel Heart (8.8×8.8mm)
Difference: 3% (1.76 mm²)
2.5ct Spinel (Heart, 8.8×8.8mm) has approx. 3% more face-up area than 2.5ct Pyrope (Heart, 8.66×8.66mm).


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