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20ct Pyrope (Round, 16.54×16.54mm, Red) vs 20ct Sunstone (Round, 18.62×18.62mm, Orangey Red)


Quick summary: When looked from above (face-up position), 20ct Sunstone (18.62×18.62mm, round cut) appears 27% larger than 20ct Pyrope (16.54×16.54mm, round cut). See below how they compare side-by-side on a ring and finger.

20ct Pyrope (round cut)
vs
 20ct Sunstone (round cut)
red
 
orangey red
16.54×16.54 mm 18.62×18.62 mm
actual size
Actual size of 20ct Pyrope (round cut, 16.54×16.54mm, Red color)   Actual size of 20ct Sunstone (round cut, 18.62×18.62mm, Orangey Red color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 20ct Pyrope (round cut, 16.54×16.54mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 20ct Sunstone (round cut, 18.62×18.62mm) 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
 98% vs 111%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Pyrope Round (16.54×16.54mm, Red) and 20ct Sunstone Round (18.62×18.62mm, Orangey 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 Sunstone for a given carat weight, because it has higher specific gravity (3.78 vs. 2.65 - this means it's "heavier" compared to Sunstone 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.


20 Ct Pyrope (Round) 20 Ct Sunstone (Round)
16.54×16.54 mm vs 18.62×18.62 mm
214.86 mm²   272.3 mm²
Face-up size outline for 20ct Sunstone (18.62×18.62mm, round cut)
Face-up size outline for 20ct Pyrope (16.54×16.54mm, round cut)
20ct Pyrope Round (16.54×16.54mm)
20ct Sunstone Round (18.62×18.62mm)
Difference: 27% (57.44 mm²)
20ct Sunstone (Round, 18.62×18.62mm) has approx. 27% more face-up area than 20ct Pyrope (Round, 16.54×16.54mm).


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