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12ct Ruby (Emerald, 14.62×10.83mm, Red) vs 19ct Emerald (Emerald, 26×12mm, Green)


Quick summary: When looked from above (face-up position), 19ct Emerald (26×12mm, emerald cut) appears 97% larger than 12ct Ruby (14.62×10.83mm, emerald cut). See below how they compare side-by-side on a ring and finger.

12ct Ruby (emerald cut)
vs
19ct Emerald (emerald cut)
red
 
green
14.62×10.83 mm 26×12 mm
actual size
Actual size of 12ct Ruby (emerald cut, 14.62×10.83mm, Red color)   Actual size of 19ct Emerald (emerald cut, 26×12mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 12ct Ruby (emerald cut, 14.62×10.83mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 19ct Emerald (emerald cut, 26×12mm) 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
65% vs 72%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 12ct Ruby Emerald (14.62×10.83mm, Red) and 19ct Emerald Emerald (26×12mm, Green) 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 Emerald for a given carat weight, because it has higher specific gravity (4 vs. 2.72 - this means it's "heavier" compared to Emerald 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.


12 Ct Ruby (Emerald) 19 Ct Emerald (Emerald)
14.62×10.83 mm vs 26×12 mm
147.25 mm²   290.16 mm²
Face-up size outline for 19ct Emerald (26×12mm, emerald cut)
Face-up size outline for 12ct Ruby (14.62×10.83mm, emerald cut)
12ct Ruby Emerald (14.62×10.83mm)
19ct Emerald Emerald (26×12mm)
Difference: 97% (142.91 mm²)
19ct Emerald (Emerald, 26×12mm) has approx. 97% more face-up area than 12ct Ruby (Emerald, 14.62×10.83mm).


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