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24ct Spinel (Cabochon, 20.45×13.63mm, Red) vs 24ct Andesine (Cabochon, 22.59×15.06mm, Orange)


Quick summary: When looked from above (face-up position), 24ct Andesine (22.59×15.06mm, cabochon cut) appears 22% larger than 24ct Spinel (20.45×13.63mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

24ct Spinel (cabochon cut)
vs
 24ct Andesine (cabochon cut)
red
 
orange
20.45×13.63 mm 22.59×15.06 mm
actual size
Actual size of 24ct Spinel (cabochon cut, 20.45×13.63mm, Red color)   Actual size of 24ct Andesine (cabochon cut, 22.59×15.06mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 24ct Spinel (cabochon cut, 20.45×13.63mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 24ct Andesine (cabochon cut, 22.59×15.06mm) 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
 81% vs 90%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 24ct Spinel Cabochon (20.45×13.63mm, Red) and 24ct Andesine Cabochon (22.59×15.06mm, Orange) 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, Spinel will face-up smaller than Andesine for a given carat weight, because it has higher specific gravity (3.6 vs. 2.67 - this means it's "heavier" compared to Andesine 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.


24 Ct Spinel (Cabochon) 24 Ct Andesine (Cabochon)
20.45×13.63 mm vs 22.59×15.06 mm
228.56 mm²   278.97 mm²
Face-up size outline for 24ct Andesine (22.59×15.06mm, cabochon cut)
Face-up size outline for 24ct Spinel (20.45×13.63mm, cabochon cut)
24ct Spinel Cabochon (20.45×13.63mm)
24ct Andesine Cabochon (22.59×15.06mm)
Difference: 22% (50.41 mm²)
24ct Andesine (Cabochon, 22.59×15.06mm) has approx. 22% more face-up area than 24ct Spinel (Cabochon, 20.45×13.63mm).


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