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13ct Pyrope (Cabochon, 16.4×10.93mm, Red) vs 13ct Sunstone (Cabochon, 18.47×12.31mm, Orangey Red)


Quick summary: When looked from above (face-up position), 13ct Sunstone (18.47×12.31mm, cabochon cut) appears 27% larger than 13ct Pyrope (16.4×10.93mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

13ct Pyrope (cabochon cut)
vs
 13ct Sunstone (cabochon cut)
red
 
orangey red
16.4×10.93 mm 18.47×12.31 mm
actual size
Actual size of 13ct Pyrope (cabochon cut, 16.4×10.93mm, Red color)   Actual size of 13ct Sunstone (cabochon cut, 18.47×12.31mm, 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 13ct Pyrope (cabochon cut, 16.4×10.93mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 13ct Sunstone (cabochon cut, 18.47×12.31mm) 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
 65% vs 73%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Pyrope Cabochon (16.4×10.93mm, Red) and 13ct Sunstone Cabochon (18.47×12.31mm, 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.


13 Ct Pyrope (Cabochon) 13 Ct Sunstone (Cabochon)
16.4×10.93 mm vs 18.47×12.31 mm
146.99 mm²   186.44 mm²
Face-up size outline for 13ct Sunstone (18.47×12.31mm, cabochon cut)
Face-up size outline for 13ct Pyrope (16.4×10.93mm, cabochon cut)
13ct Pyrope Cabochon (16.4×10.93mm)
13ct Sunstone Cabochon (18.47×12.31mm)
Difference: 27% (39.45 mm²)
13ct Sunstone (Cabochon, 18.47×12.31mm) has approx. 27% more face-up area than 13ct Pyrope (Cabochon, 16.4×10.93mm).


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