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20ct Ruby (Baguette, 18.81×12.54mm, Red) vs 11ct Emerald (Emerald, 20×10mm, Green)


Quick summary: When looked from above (face-up position), 20ct Ruby (18.81×12.54mm, baguette cut) appears 27% larger than 11ct Emerald (20×10mm, emerald cut). See below how they compare side-by-side on a ring and finger.

20ct Ruby (baguette cut)
vs
 11ct Emerald (emerald cut)
red
 
green
18.81×12.54 mm 20×10 mm
actual size
Actual size of 20ct Ruby (baguette cut, 18.81×12.54mm, Red color)   Actual size of 11ct Emerald (emerald cut, 20×10mm, Green 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 (baguette cut, 18.81×12.54mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 11ct Emerald (emerald cut, 20×10mm) 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
 75% vs 60%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Ruby Baguette (18.81×12.54mm, Red) and 11ct Emerald Emerald (20×10mm, 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.


20 Ct Ruby (Baguette) 11 Ct Emerald (Emerald)
18.81×12.54 mm vs 20×10 mm
235.88 mm²   186 mm²
Face-up size outline for 20ct Ruby (18.81×12.54mm, baguette cut)
Face-up size outline for 11ct Emerald (20×10mm, emerald cut)
20ct Ruby Baguette (18.81×12.54mm)
11ct Emerald Emerald (20×10mm)
Difference: 27% (49.88 mm²)
20ct Ruby (Baguette, 18.81×12.54mm) has approx. 27% more face-up area than 11ct Emerald (Emerald, 20×10mm).


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