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5ct Sapphire (Trillion, 12.02×12.02mm, Blue) vs 2.5ct Emerald (Pear, 12.85×7.74mm, Green)


Quick summary: When looked from above (face-up position), 5ct Sapphire (12.02×12.02mm, trillion cut) appears 23% larger than 2.5ct Emerald (12.85×7.74mm, pear cut). See below how they compare side-by-side on a ring and finger.

5ct Sapphire (trillion cut)
vs
 2.5ct Emerald (pear cut)
blue
 
green
12.02×12.02 mm 12.85×7.74 mm
actual size
Actual size of 5ct Sapphire (trillion cut, 12.02×12.02mm, Blue color)   Actual size of 2.5ct Emerald (pear cut, 12.85×7.74mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 5ct Sapphire (trillion cut, 12.02×12.02mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 2.5ct Emerald (pear cut, 12.85×7.74mm) 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
 72% vs 46%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Sapphire Trillion (12.02×12.02mm, Blue) and 2.5ct Emerald Pear (12.85×7.74mm, Green) 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.


5 Ct Sapphire (Trillion) 2.5 Ct Emerald (Pear)
12.02×12.02 mm vs 12.85×7.74 mm
89.58 mm²   72.61 mm²
Face-up size outline for 5ct Sapphire (12.02×12.02mm, trillion cut)
Face-up size outline for 2.5ct Emerald (12.85×7.74mm, pear cut)
5ct Sapphire Trillion (12.02×12.02mm)
2.5ct Emerald Pear (12.85×7.74mm)
Difference: 23% (16.97 mm²)
5ct Sapphire (Trillion, 12.02×12.02mm) has approx. 23% more face-up area than 2.5ct Emerald (Pear, 12.85×7.74mm).


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