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19ct Ruby (Round, 15.95×15.95mm, Red) vs 19ct Andesine (Round, 18.25×18.25mm, Orange)


Quick summary: When looked from above (face-up position), 19ct Andesine (18.25×18.25mm, round cut) appears 31% larger than 19ct Ruby (15.95×15.95mm, round cut). See below how they compare side-by-side on a ring and finger.

19ct Ruby (round cut)
vs
 19ct Andesine (round cut)
red
 
orange
15.95×15.95 mm 18.25×18.25 mm
actual size
Actual size of 19ct Ruby (round cut, 15.95×15.95mm, Red color)   Actual size of 19ct Andesine (round cut, 18.25×18.25mm, Orange color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 19ct Ruby (round cut, 15.95×15.95mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 19ct Andesine (round cut, 18.25×18.25mm) 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
 95% vs 108%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 19ct Ruby Round (15.95×15.95mm, Red) and 19ct Andesine Round (18.25×18.25mm, 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.


19 Ct Ruby (Round) 19 Ct Andesine (Round)
15.95×15.95 mm vs 18.25×18.25 mm
199.81 mm²   261.59 mm²
Face-up size outline for 19ct Andesine (18.25×18.25mm, round cut)
Face-up size outline for 19ct Ruby (15.95×15.95mm, round cut)
19ct Ruby Round (15.95×15.95mm)
19ct Andesine Round (18.25×18.25mm)
Difference: 31% (61.78 mm²)
19ct Andesine (Round, 18.25×18.25mm) has approx. 31% more face-up area than 19ct Ruby (Round, 15.95×15.95mm).


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