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0.33ct Sapphire (Round, 4.13×4.13mm, Blue) vs 0.7ct Emerald (Round, 6.05×6.05mm, Green)


Quick summary: When looked from above (face-up position), 0.7ct Emerald (6.05×6.05mm, round cut) appears 2.2 times larger than 0.33ct Sapphire (4.13×4.13mm, round cut). See below how they compare side-by-side on a ring and finger.

0.33ct Sapphire (round cut)
vs
 0.7ct Emerald (round cut)
blue
 
green
4.13×4.13 mm 6.05×6.05 mm
actual size
Actual size of 0.33ct Sapphire (round cut, 4.13×4.13mm, Blue color)   Actual size of 0.7ct Emerald (round cut, 6.05×6.05mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.33ct Sapphire (round cut, 4.13×4.13mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 0.7ct Emerald (round cut, 6.05×6.05mm) 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
 25% vs 36%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.33ct Sapphire Round (4.13×4.13mm, Blue) and 0.7ct Emerald Round (6.05×6.05mm, 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.


0.33 Ct Sapphire (Round) 0.7 Ct Emerald (Round)
4.13×4.13 mm vs 6.05×6.05 mm
13.4 mm²   28.75 mm²
Face-up size outline for 0.7ct Emerald (6.05×6.05mm, round cut)
Face-up size outline for 0.33ct Sapphire (4.13×4.13mm, round cut)
0.33ct Sapphire Round (4.13×4.13mm)
0.7ct Emerald Round (6.05×6.05mm)
Difference: 115% (15.35 mm²)
0.7ct Emerald (Round, 6.05×6.05mm) has approx. 115% more face-up area than 0.33ct Sapphire (Round, 4.13×4.13mm). In other words, it's 2.15x larger.


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