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11ct Ruby (Cabochon, 15.23×10.15mm, Red) vs 11ct Andesine (Cabochon, 17.42×11.61mm, Orange)


Quick summary: When looked from above (face-up position), 11ct Andesine (17.42×11.61mm, cabochon cut) appears 31% larger than 11ct Ruby (15.23×10.15mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

11ct Ruby (cabochon cut)
vs
 11ct Andesine (cabochon cut)
red
 
orange
15.23×10.15 mm 17.42×11.61 mm
actual size
Actual size of 11ct Ruby (cabochon cut, 15.23×10.15mm, Red color)   Actual size of 11ct Andesine (cabochon cut, 17.42×11.61mm, 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 Ruby (cabochon cut, 15.23×10.15mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 11ct Andesine (cabochon cut, 17.42×11.61mm) 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
 61% vs 69%
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Ring diameter: 16.9 mm
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Actual sizes of 11ct Ruby Cabochon (15.23×10.15mm, Red) and 11ct Andesine Cabochon (17.42×11.61mm, 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.


11 Ct Ruby (Cabochon) 11 Ct Andesine (Cabochon)
15.23×10.15 mm vs 17.42×11.61 mm
126.76 mm²   165.84 mm²
Face-up size outline for 11ct Andesine (17.42×11.61mm, cabochon cut)
Face-up size outline for 11ct Ruby (15.23×10.15mm, cabochon cut)
11ct Ruby Cabochon (15.23×10.15mm)
11ct Andesine Cabochon (17.42×11.61mm)
Difference: 31% (39.08 mm²)
11ct Andesine (Cabochon, 17.42×11.61mm) has approx. 31% more face-up area than 11ct Ruby (Cabochon, 15.23×10.15mm).


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