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20ct Ruby (Oval, 20.81×13.87mm, Red) vs 8ct Ruby (Oval, 15.33×10.22mm, Red)


Quick summary: When looked from above (face-up position), 20ct Ruby (20.81×13.87mm, oval cut) appears 84% larger than 8ct Ruby (15.33×10.22mm, oval cut). See below how they compare side-by-side on a ring and finger.

20ct Ruby (oval cut)
vs
 8ct Ruby (oval cut)
red
 
red
20.81×13.87 mm 15.33×10.22 mm
actual size
Actual size of 20ct Ruby (oval cut, 20.81×13.87mm, Red color)   Actual size of 8ct Ruby (oval cut, 15.33×10.22mm, Red 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 (oval cut, 20.81×13.87mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 8ct Ruby (oval cut, 15.33×10.22mm) 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
 83% vs 61%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 20ct Ruby Oval (20.81×13.87mm, Red) and 8ct Ruby Oval (15.33×10.22mm, 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

The face-up size depends on the shape of the gem, its weight and 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 (Oval) 8 Ct Ruby (Oval)
20.81×13.87 mm vs 15.33×10.22 mm
236.68 mm²   128.47 mm²
Face-up size outline for 20ct Ruby (20.81×13.87mm, oval cut)
Face-up size outline for 8ct Ruby (15.33×10.22mm, oval cut)
20ct Ruby Oval (20.81×13.87mm)
8ct Ruby Oval (15.33×10.22mm)
Difference: 84% (108.21 mm²)
20ct Ruby (Oval, 20.81×13.87mm) has approx. 84% more face-up area than 8ct Ruby (Oval, 15.33×10.22mm).


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