×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

6ct Emerald (Oval, 15.68×10.45mm, Green) vs 6ct Ruby (Oval, 12×10mm, Red)


Quick summary: When looked from above (face-up position), 6ct Emerald (15.68×10.45mm, oval cut) appears 37% larger than 6ct Ruby (12×10mm, 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 12×10 mm
actual size
Actual size of 6ct Emerald (oval cut, 15.68×10.45mm, Green color)   Actual size of 6ct Ruby (oval cut, 12×10mm, 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, 12×10mm) 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
 62% vs 60%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 6ct Emerald Oval (15.68×10.45mm, Green) and 6ct Ruby Oval (12×10mm, 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 12×10 mm
134.36 mm²   98.4 mm²
Face-up size outline for 6ct Emerald (15.68×10.45mm, oval cut)
Face-up size outline for 6ct Ruby (12×10mm, oval cut)
6ct Emerald Oval (15.68×10.45mm)
6ct Ruby Oval (12×10mm)
Difference: 37% (35.96 mm²)
6ct Emerald (Oval, 15.68×10.45mm) has approx. 37% more face-up area than 6ct Ruby (Oval, 12×10mm).


Popular comparisons: