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6ct Diopside (Emerald, 12.37×9.16mm, Green) vs 6ct Tourmaline (Emerald, 12.64×9.36mm, Violet)


Quick summary: When looked from above (face-up position), 6ct Tourmaline (12.64×9.36mm, emerald cut) appears 4% larger than 6ct Diopside (12.37×9.16mm, emerald cut). See below how they compare side-by-side on a ring and finger.

6ct Diopside (emerald cut)
vs
 6ct Tourmaline (emerald cut)
green
 
violet
12.37×9.16 mm 12.64×9.36 mm
actual size
Actual size of 6ct Diopside (emerald cut, 12.37×9.16mm, Green color)   Actual size of 6ct Tourmaline (emerald cut, 12.64×9.36mm, Violet color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 6ct Diopside (emerald cut, 12.37×9.16mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 6ct Tourmaline (emerald cut, 12.64×9.36mm) 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
 55% vs 56%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 6ct Diopside Emerald (12.37×9.16mm, Green) and 6ct Tourmaline Emerald (12.64×9.36mm, Violet) 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, Diopside will face-up smaller than Tourmaline for a given carat weight, because it has higher specific gravity (3.3 vs. 3.06 - this means it's "heavier" compared to Tourmaline 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 Diopside (Emerald) 6 Ct Tourmaline (Emerald)
12.37×9.16 mm vs 12.64×9.36 mm
105.38 mm²   110.03 mm²
Face-up size outline for 6ct Tourmaline (12.64×9.36mm, emerald cut)
Face-up size outline for 6ct Diopside (12.37×9.16mm, emerald cut)
6ct Diopside Emerald (12.37×9.16mm)
6ct Tourmaline Emerald (12.64×9.36mm)
Difference: 4% (4.65 mm²)
6ct Tourmaline (Emerald, 12.64×9.36mm) has approx. 4% more face-up area than 6ct Diopside (Emerald, 12.37×9.16mm).


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