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20ct Emerald (Pear, 25.7×15.48mm, Green) vs 13ct Sapphire (Oval, 16×12mm, Blue)


Quick summary: When looked from above (face-up position), 20ct Emerald (25.7×15.48mm, pear cut) appears 84% larger than 13ct Sapphire (16×12mm, oval cut). See below how they compare side-by-side on a ring and finger.

20ct Emerald (pear cut)
vs
 13ct Sapphire (oval cut)
green
 
blue
25.7×15.48 mm 16×12 mm
actual size
Actual size of 20ct Emerald (pear cut, 25.7×15.48mm, Green color)   Actual size of 13ct Sapphire (oval cut, 16×12mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 20ct Emerald (pear cut, 25.7×15.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 13ct Sapphire (oval cut, 16×12mm) 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
 92% vs 72%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Emerald Pear (25.7×15.48mm, Green) and 13ct Sapphire Oval (16×12mm, 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

All things being equal, Sapphire 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.


20 Ct Emerald (Pear) 13 Ct Sapphire (Oval)
25.7×15.48 mm vs 16×12 mm
290.42 mm²   157.44 mm²
Face-up size outline for 20ct Emerald (25.7×15.48mm, pear cut)
Face-up size outline for 13ct Sapphire (16×12mm, oval cut)
20ct Emerald Pear (25.7×15.48mm)
13ct Sapphire Oval (16×12mm)
Difference: 84% (132.98 mm²)
20ct Emerald (Pear, 25.7×15.48mm) has approx. 84% more face-up area than 13ct Sapphire (Oval, 16×12mm).


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