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13ct Spinel (Cushion, 13.48×13.48mm, Red) vs 13ct Andesine (Cushion, 14.89×14.89mm, Orange)


Quick summary: When looked from above (face-up position), 13ct Andesine (14.89×14.89mm, cushion cut) appears 22% larger than 13ct Spinel (13.48×13.48mm, cushion cut). See below how they compare side-by-side on a ring and finger.

13ct Spinel (cushion cut)
vs
 13ct Andesine (cushion cut)
red
 
orange
13.48×13.48 mm 14.89×14.89 mm
actual size
Actual size of 13ct Spinel (cushion cut, 13.48×13.48mm, Red color)   Actual size of 13ct Andesine (cushion cut, 14.89×14.89mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 13ct Spinel (cushion cut, 13.48×13.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 13ct Andesine (cushion cut, 14.89×14.89mm) 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
 80% vs 89%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Spinel Cushion (13.48×13.48mm, Red) and 13ct Andesine Cushion (14.89×14.89mm, 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.


13 Ct Spinel (Cushion) 13 Ct Andesine (Cushion)
13.48×13.48 mm vs 14.89×14.89 mm
163.54 mm²   199.54 mm²
Face-up size outline for 13ct Andesine (14.89×14.89mm, cushion cut)
Face-up size outline for 13ct Spinel (13.48×13.48mm, cushion cut)
13ct Spinel Cushion (13.48×13.48mm)
13ct Andesine Cushion (14.89×14.89mm)
Difference: 22% (36 mm²)
13ct Andesine (Cushion, 14.89×14.89mm) has approx. 22% more face-up area than 13ct Spinel (Cushion, 13.48×13.48mm).


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