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6ct Emerald (Oval, 15.68×10.45mm, Green) vs 6ct Ruby (Oval, 13.74×9.16mm, Red)


Quick summary: When looked from above (face-up position), 6ct Emerald (15.68×10.45mm, oval cut) appears 30% larger than 6ct Ruby (13.74×9.16mm, oval cut). See below how they compare side-by-side on a ring and finger. 

6ct Emerald (oval cut)
vs
6ct Ruby (oval cut)
green
 
red
15.68×10.45 mm 13.74×9.16 mm
actual size
Actual size of 6ct Emerald (oval cut, 15.68×10.45mm, Green color)   Actual size of 6ct Ruby (oval cut, 13.74×9.16mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 6ct Emerald (oval cut, 15.68×10.45mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 6ct Ruby (oval cut, 13.74×9.16mm) 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
62% vs 55%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 6ct Emerald Oval (15.68×10.45mm, Green) and 6ct Ruby Oval (13.74×9.16mm, Red) 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.


6 Ct Emerald (Oval) 6 Ct Ruby (Oval)
15.68×10.45 mm vs 13.74×9.16 mm
134.36 mm²   103.2 mm²
Face-up size outline for 6ct Emerald (15.68×10.45mm, oval cut)
Face-up size outline for 6ct Ruby (13.74×9.16mm, oval cut)
6ct Emerald Oval (15.68×10.45mm)
6ct Ruby Oval (13.74×9.16mm)
Difference: 30% (31.16 mm²)
6ct Emerald (Oval, 15.68×10.45mm) has approx. 30% more face-up area than 6ct Ruby (Oval, 13.74×9.16mm).


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