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12.31ct Ruby (Cushion, 13.21×12.61mm, Red) vs 6.37ct Ruby (Cushion, 10.37×10.37mm, Red)


Quick summary: When looked from above (face-up position), 12.31ct Ruby (13.21×12.61mm, cushion cut) appears 55% larger than 6.37ct Ruby (10.37×10.37mm, cushion cut). See below how they compare side-by-side on a ring and finger.

12.31ct Ruby (cushion cut)
vs
 6.37ct Ruby (cushion cut)
red
 
red
13.21×12.61 mm 10.37×10.37 mm
actual size
Actual size of 12.31ct Ruby (cushion cut, 13.21×12.61mm, Red color)   Actual size of 6.37ct Ruby (cushion cut, 10.37×10.37mm, Red color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 12.31ct Ruby (cushion cut, 13.21×12.61mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 6.37ct Ruby (cushion cut, 10.37×10.37mm) 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 62%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 12.31ct Ruby Cushion (13.21×12.61mm, Red) and 6.37ct Ruby Cushion (10.37×10.37mm, 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.


12.31 Ct Ruby (Cushion) 6.37 Ct Ruby (Cushion)
13.21×12.61 mm vs 10.37×10.37 mm
149.92 mm²   96.78 mm²
Face-up size outline for 12.31ct Ruby (13.21×12.61mm, cushion cut)
Face-up size outline for 6.37ct Ruby (10.37×10.37mm, cushion cut)
12.31ct Ruby Cushion (13.21×12.61mm)
6.37ct Ruby Cushion (10.37×10.37mm)
Difference: 55% (53.14 mm²)
12.31ct Ruby (Cushion, 13.21×12.61mm) has approx. 55% more face-up area than 6.37ct Ruby (Cushion, 10.37×10.37mm).


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