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40ct Spinel (Asscher, 18.88×18.88mm, Red) vs 40ct Andesine (Asscher, 20.86×20.86mm, Orange)


Quick summary: When looked from above (face-up position), 40ct Andesine (20.86×20.86mm, asscher cut) appears 22% larger than 40ct Spinel (18.88×18.88mm, asscher cut). See below how they compare side-by-side on a ring and finger.

40ct Spinel (asscher cut)
vs
 40ct Andesine (asscher cut)
red
 
orange
18.88×18.88 mm 20.86×20.86 mm
actual size
Actual size of 40ct Spinel (asscher cut, 18.88×18.88mm, Red color)   Actual size of 40ct Andesine (asscher cut, 20.86×20.86mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 40ct Spinel (asscher cut, 18.88×18.88mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 40ct Andesine (asscher cut, 20.86×20.86mm) 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
 112% vs 124%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Spinel Asscher (18.88×18.88mm, Red) and 40ct Andesine Asscher (20.86×20.86mm, 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.


40 Ct Spinel (Asscher) 40 Ct Andesine (Asscher)
18.88×18.88 mm vs 20.86×20.86 mm
327.94 mm²   400.33 mm²
Face-up size outline for 40ct Andesine (20.86×20.86mm, asscher cut)
Face-up size outline for 40ct Spinel (18.88×18.88mm, asscher cut)
40ct Spinel Asscher (18.88×18.88mm)
40ct Andesine Asscher (20.86×20.86mm)
Difference: 22% (72.39 mm²)
40ct Andesine (Asscher, 20.86×20.86mm) has approx. 22% more face-up area than 40ct Spinel (Asscher, 18.88×18.88mm).


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