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0.7ct Emerald (Cushion, 5.66×5.66mm, Green) vs 0.7ct Tanzanite (Emerald, 6.05×4.48mm, Blue)


Quick summary: When looked from above (face-up position), 0.7ct Emerald (5.66×5.66mm, cushion cut) appears 14% larger than 0.7ct Tanzanite (6.05×4.48mm, emerald cut). See below how they compare side-by-side on a ring and finger.

0.7ct Emerald (cushion cut)
vs
0.7ct Tanzanite (emerald cut)
green
 
blue
5.66×5.66 mm 6.05×4.48 mm
actual size
Actual size of 0.7ct Emerald (cushion cut, 5.66×5.66mm, Green color)   Actual size of 0.7ct Tanzanite (emerald cut, 6.05×4.48mm, Blue color)
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Green 0.7ct Emerald (cushion cut, 5.66×5.66mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 0.7ct Tanzanite (emerald cut, 6.05×4.48mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 0.7ct Emerald Cushion (5.66×5.66mm, Green) and 0.7ct Tanzanite Emerald (6.05×4.48mm, 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, Tanzanite will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.3 vs. 2.7 - 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.


0.7 Ct Emerald (Cushion) 0.7 Ct Tanzanite (Emerald)
5.66×5.66 mm vs 6.05×4.48 mm
28.83 mm²   25.21 mm²
Face-up size outline for 0.7ct Emerald (5.66×5.66mm, cushion cut)
Face-up size outline for 0.7ct Tanzanite (6.05×4.48mm, emerald cut)
0.7ct Emerald Cushion (5.66×5.66mm)
0.7ct Tanzanite Emerald (6.05×4.48mm)
Difference: 14% (3.62 mm²)
0.7ct Emerald Cushion (5.66×5.66mm) has approx. 14% more face-up area than 0.7ct Tanzanite Emerald (6.05×4.48mm).


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