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30ct Ruby (Princess, 16.32×16.32mm, Red) vs 30ct Andesine (Princess, 18.68×18.68mm, Orange)


Quick summary: When looked from above (face-up position), 30ct Andesine (18.68×18.68mm, princess cut) appears 31% larger than 30ct Ruby (16.32×16.32mm, princess cut). See below how they compare side-by-side on a ring and finger.

30ct Ruby (princess cut)
vs
 30ct Andesine (princess cut)
red
 
orange
16.32×16.32 mm 18.68×18.68 mm
actual size
Actual size of 30ct Ruby (princess cut, 16.32×16.32mm, Red color)   Actual size of 30ct Andesine (princess cut, 18.68×18.68mm, Orange color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 30ct Ruby (princess cut, 16.32×16.32mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 30ct Andesine (princess cut, 18.68×18.68mm) 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
 97% vs 111%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 30ct Ruby Princess (16.32×16.32mm, Red) and 30ct Andesine Princess (18.68×18.68mm, 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.


30 Ct Ruby (Princess) 30 Ct Andesine (Princess)
16.32×16.32 mm vs 18.68×18.68 mm
266.34 mm²   348.94 mm²
Face-up size outline for 30ct Andesine (18.68×18.68mm, princess cut)
Face-up size outline for 30ct Ruby (16.32×16.32mm, princess cut)
30ct Ruby Princess (16.32×16.32mm)
30ct Andesine Princess (18.68×18.68mm)
Difference: 31% (82.6 mm²)
30ct Andesine (Princess, 18.68×18.68mm) has approx. 31% more face-up area than 30ct Ruby (Princess, 16.32×16.32mm).


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