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33ct Spinel (Round, 19.86×19.86mm, Red) vs 33ct Andesine (Round, 21.94×21.94mm, Orange)


Quick summary: When looked from above (face-up position), 33ct Andesine (21.94×21.94mm, round cut) appears 22% larger than 33ct Spinel (19.86×19.86mm, round cut). See below how they compare side-by-side on a ring and finger.

33ct Spinel (round cut)
vs
 33ct Andesine (round cut)
red
 
orange
19.86×19.86 mm 21.94×21.94 mm
actual size
Actual size of 33ct Spinel (round cut, 19.86×19.86mm, Red color)   Actual size of 33ct Andesine (round cut, 21.94×21.94mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 33ct Spinel (round cut, 19.86×19.86mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 33ct Andesine (round cut, 21.94×21.94mm) 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
 118% vs 130%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 33ct Spinel Round (19.86×19.86mm, Red) and 33ct Andesine Round (21.94×21.94mm, 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.


33 Ct Spinel (Round) 33 Ct Andesine (Round)
19.86×19.86 mm vs 21.94×21.94 mm
309.78 mm²   378.06 mm²
Face-up size outline for 33ct Andesine (21.94×21.94mm, round cut)
Face-up size outline for 33ct Spinel (19.86×19.86mm, round cut)
33ct Spinel Round (19.86×19.86mm)
33ct Andesine Round (21.94×21.94mm)
Difference: 22% (68.28 mm²)
33ct Andesine (Round, 21.94×21.94mm) has approx. 22% more face-up area than 33ct Spinel (Round, 19.86×19.86mm).


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