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20ct Ruby (Oval, 20.81×13.87mm, Red) vs 20ct Andesine (Oval, 23.82×15.88mm, Orange)


Quick summary: When looked from above (face-up position), 20ct Andesine (23.82×15.88mm, oval cut) appears 31% larger than 20ct Ruby (20.81×13.87mm, oval cut). See below how they compare side-by-side on a ring and finger.

20ct Ruby (oval cut)
vs
 20ct Andesine (oval cut)
red
 
orange
20.81×13.87 mm 23.82×15.88 mm
actual size
Actual size of 20ct Ruby (oval cut, 20.81×13.87mm, Red color)   Actual size of 20ct Andesine (oval cut, 23.82×15.88mm, Orange color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 20ct Ruby (oval cut, 20.81×13.87mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 20ct Andesine (oval cut, 23.82×15.88mm) 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
 83% vs 94%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Ruby Oval (20.81×13.87mm, Red) and 20ct Andesine Oval (23.82×15.88mm, 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, Ruby will face-up smaller than Andesine for a given carat weight, because it has higher specific gravity (4 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.


20 Ct Ruby (Oval) 20 Ct Andesine (Oval)
20.81×13.87 mm vs 23.82×15.88 mm
236.68 mm²   310.17 mm²
Face-up size outline for 20ct Andesine (23.82×15.88mm, oval cut)
Face-up size outline for 20ct Ruby (20.81×13.87mm, oval cut)
20ct Ruby Oval (20.81×13.87mm)
20ct Andesine Oval (23.82×15.88mm)
Difference: 31% (73.49 mm²)
20ct Andesine (Oval, 23.82×15.88mm) has approx. 31% more face-up area than 20ct Ruby (Oval, 20.81×13.87mm).


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