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5.5ct Diopside (Round, 11.25×11.25mm, Green) vs 5.5ct Emerald (Round, 12×12mm, Green)


Quick summary: When looked from above (face-up position), 5.5ct Emerald (12×12mm, round cut) appears 14% larger than 5.5ct Diopside (11.25×11.25mm, round cut). See below how they compare side-by-side on a ring and finger.

5.5ct Diopside (round cut)
vs
 5.5ct Emerald (round cut)
green
 
green
11.25×11.25 mm 12×12 mm
actual size
Actual size of 5.5ct Diopside (round cut, 11.25×11.25mm, Green color)   Actual size of 5.5ct Emerald (round cut, 12×12mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 5.5ct Diopside (round cut, 11.25×11.25mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 5.5ct Emerald (round cut, 12×12mm) 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
 67% vs 72%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5.5ct Diopside Round (11.25×11.25mm, Green) and 5.5ct Emerald Round (12×12mm, 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, Diopside will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.3 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.


5.5 Ct Diopside (Round) 5.5 Ct Emerald (Round)
11.25×11.25 mm vs 12×12 mm
99.4 mm²   113.1 mm²
Face-up size outline for 5.5ct Emerald (12×12mm, round cut)
Face-up size outline for 5.5ct Diopside (11.25×11.25mm, round cut)
5.5ct Diopside Round (11.25×11.25mm)
5.5ct Emerald Round (12×12mm)
Difference: 14% (13.7 mm²)
5.5ct Emerald (Round, 12×12mm) has approx. 14% more face-up area than 5.5ct Diopside (Round, 11.25×11.25mm).


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