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0.3ct Spinel (Baguette, 4.8×3mm, Green) vs 0.7ct Emerald (Trillion, 7.11×7.11mm, Green)


Quick summary: When looked from above (face-up position), 0.7ct Emerald (7.11×7.11mm, trillion cut) appears 2.2 times larger than 0.3ct Spinel (4.8×3mm, baguette cut). See below how they compare side-by-side on a ring and finger.

0.3ct Spinel (baguette cut)
vs
 0.7ct Emerald (trillion cut)
green
 
green
4.8×3 mm 7.11×7.11 mm
actual size
Actual size of 0.3ct Spinel (baguette cut, 4.8×3mm, Green color)   Actual size of 0.7ct Emerald (trillion cut, 7.11×7.11mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 0.3ct Spinel (baguette cut, 4.8×3mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 0.7ct Emerald (trillion cut, 7.11×7.11mm) 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
 18% vs 43%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.3ct Spinel Baguette (4.8×3mm, Green) and 0.7ct Emerald Trillion (7.11×7.11mm, 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, Spinel will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.6 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.


0.3 Ct Spinel (Baguette) 0.7 Ct Emerald (Trillion)
4.8×3 mm vs 7.11×7.11 mm
14.4 mm²   31.34 mm²
Face-up size outline for 0.7ct Emerald (7.11×7.11mm, trillion cut)
Face-up size outline for 0.3ct Spinel (4.8×3mm, baguette cut)
0.3ct Spinel Baguette (4.8×3mm)
0.7ct Emerald Trillion (7.11×7.11mm)
Difference: 118% (16.94 mm²)
0.7ct Emerald (Trillion, 7.11×7.11mm) has approx. 118% more face-up area than 0.3ct Spinel (Baguette, 4.8×3mm). In other words, it's 2.18x larger.


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