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8.8ct Tourmaline (Oval, 15.22×11.45mm, Dark Yellowish Green) vs 7ct Emerald (Emerald, 14.06×9.19mm, Bluish Green)


Quick summary: When looked from above (face-up position), 8.8ct Tourmaline (15.22×11.45mm, oval cut) appears 19% larger than 7ct Emerald (14.06×9.19mm, emerald cut). See below how they compare side-by-side on a ring and finger.

8.8ct Tourmaline (oval cut)
vs
7ct Emerald (emerald cut)
dark yellowish green
 
bluish green
15.22×11.45 mm 14.06×9.19 mm
actual size
Actual size of 8.8ct Tourmaline (oval cut, 15.22×11.45mm, Dark Yellowish Green color)   Actual size of 7ct Emerald (emerald cut, 14.06×9.19mm, Bluish Green color)
 
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Ring: Skin tone:
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Left finger image
Ring on left finger
Dark Yellowish Green 8.8ct Tourmaline (oval cut, 15.22×11.45mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 7ct Emerald (emerald cut, 14.06×9.19mm) 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 8.8ct Tourmaline Oval (15.22×11.45mm, Dark Yellowish Green) and 7ct Emerald Emerald (14.06×9.19mm, Bluish 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, Tourmaline will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.1 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.


8.8 Ct Tourmaline (Oval) 7 Ct Emerald (Emerald)
15.22×11.45 mm vs 14.06×9.19 mm
142.9 mm²   120.17 mm²
Face-up size outline for 8.8ct Tourmaline (15.22×11.45mm, oval cut)
Face-up size outline for 7ct Emerald (14.06×9.19mm, emerald cut)
8.8ct Tourmaline Oval (15.22×11.45mm)
7ct Emerald Emerald (14.06×9.19mm)
Difference: 19% (22.73 mm²)
8.8ct Tourmaline Oval (15.22×11.45mm) has approx. 19% more face-up area than 7ct Emerald Emerald (14.06×9.19mm).


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