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6ct Sapphire (Baguette, 12.6×8.4mm, Blue) vs 3ct Emerald (Round, 9.83×9.83mm, Green)


Quick summary: When looked from above (face-up position), 6ct Sapphire (12.6×8.4mm, baguette cut) appears 39% larger than 3ct Emerald (9.83×9.83mm, round cut). See below how they compare side-by-side on a ring and finger.

6ct Sapphire (baguette cut)
vs
 3ct Emerald (round cut)
blue
 
green
12.6×8.4 mm 9.83×9.83 mm
actual size
Actual size of 6ct Sapphire (baguette cut, 12.6×8.4mm, Blue color)   Actual size of 3ct Emerald (round cut, 9.83×9.83mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 6ct Sapphire (baguette cut, 12.6×8.4mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 3ct Emerald (round cut, 9.83×9.83mm) 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
 50% vs 59%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 6ct Sapphire Baguette (12.6×8.4mm, Blue) and 3ct Emerald Round (9.83×9.83mm, 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.


6 Ct Sapphire (Baguette) 3 Ct Emerald (Round)
12.6×8.4 mm vs 9.83×9.83 mm
105.84 mm²   75.89 mm²
Face-up size outline for 6ct Sapphire (12.6×8.4mm, baguette cut)
Face-up size outline for 3ct Emerald (9.83×9.83mm, round cut)
6ct Sapphire Baguette (12.6×8.4mm)
3ct Emerald Round (9.83×9.83mm)
Difference: 39% (29.95 mm²)
6ct Sapphire (Baguette, 12.6×8.4mm) has approx. 39% more face-up area than 3ct Emerald (Round, 9.83×9.83mm).


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