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11ct Spinel (Round, 13.77×13.77mm, Red) vs 11ct Andesine (Round, 15.21×15.21mm, Orange)


Quick summary: When looked from above (face-up position), 11ct Andesine (15.21×15.21mm, round cut) appears 22% larger than 11ct Spinel (13.77×13.77mm, round cut). See below how they compare side-by-side on a ring and finger.

11ct Spinel (round cut)
vs
 11ct Andesine (round cut)
red
 
orange
13.77×13.77 mm 15.21×15.21 mm
actual size
Actual size of 11ct Spinel (round cut, 13.77×13.77mm, Red color)   Actual size of 11ct Andesine (round cut, 15.21×15.21mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 11ct Spinel (round cut, 13.77×13.77mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 11ct Andesine (round cut, 15.21×15.21mm) 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
 82% vs 91%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 11ct Spinel Round (13.77×13.77mm, Red) and 11ct Andesine Round (15.21×15.21mm, 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.


11 Ct Spinel (Round) 11 Ct Andesine (Round)
13.77×13.77 mm vs 15.21×15.21 mm
148.92 mm²   181.7 mm²
Face-up size outline for 11ct Andesine (15.21×15.21mm, round cut)
Face-up size outline for 11ct Spinel (13.77×13.77mm, round cut)
11ct Spinel Round (13.77×13.77mm)
11ct Andesine Round (15.21×15.21mm)
Difference: 22% (32.78 mm²)
11ct Andesine (Round, 15.21×15.21mm) has approx. 22% more face-up area than 11ct Spinel (Round, 13.77×13.77mm).


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