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13ct Ruby (Pear, 19.52×11.76mm, Red) vs 13ct Sapphire (Trillion, 16.53×16.53mm, Blue)


Quick summary: When looked from above (face-up position), 13ct Sapphire (16.53×16.53mm, trillion cut) appears 1% larger than 13ct Ruby (19.52×11.76mm, pear cut). See below how they compare side-by-side on a ring and finger.

13ct Ruby (pear cut)
vs
 13ct Sapphire (trillion cut)
red
 
blue
19.52×11.76 mm 16.53×16.53 mm
actual size
Actual size of 13ct Ruby (pear cut, 19.52×11.76mm, Red color)   Actual size of 13ct Sapphire (trillion cut, 16.53×16.53mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 13ct Ruby (pear cut, 19.52×11.76mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 13ct Sapphire (trillion cut, 16.53×16.53mm) 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
 70% vs 98%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Ruby Pear (19.52×11.76mm, Red) and 13ct Sapphire Trillion (16.53×16.53mm, Blue) 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

Ruby and Sapphire have the same specific gravity so their face-up size depends on the weight, shape and 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.


13 Ct Ruby (Pear) 13 Ct Sapphire (Trillion)
19.52×11.76 mm vs 16.53×16.53 mm
167.58 mm²   169.41 mm²
Face-up size outline for 13ct Sapphire (16.53×16.53mm, trillion cut)
Face-up size outline for 13ct Ruby (19.52×11.76mm, pear cut)
13ct Ruby Pear (19.52×11.76mm)
13ct Sapphire Trillion (16.53×16.53mm)
Difference: 1% (1.83 mm²)
13ct Sapphire (Trillion, 16.53×16.53mm) has approx. 1% more face-up area than 13ct Ruby (Pear, 19.52×11.76mm).


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