×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

10ct Diopside (Cushion, 12.72×12.72mm, Green) vs 10ct Emerald (Cushion, 13.56×13.56mm, Green)


Quick summary: When looked from above (face-up position), 10ct Emerald (13.56×13.56mm, cushion cut) appears 14% larger than 10ct Diopside (12.72×12.72mm, cushion cut). See below how they compare side-by-side on a ring and finger.

10ct Diopside (cushion cut)
vs
 10ct Emerald (cushion cut)
green
 
green
12.72×12.72 mm 13.56×13.56 mm
actual size
Actual size of 10ct Diopside (cushion cut, 12.72×12.72mm, Green color)   Actual size of 10ct Emerald (cushion cut, 13.56×13.56mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 10ct Diopside (cushion cut, 12.72×12.72mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 10ct Emerald (cushion cut, 13.56×13.56mm) 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
 76% vs 81%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 10ct Diopside Cushion (12.72×12.72mm, Green) and 10ct Emerald Cushion (13.56×13.56mm, 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.


10 Ct Diopside (Cushion) 10 Ct Emerald (Cushion)
12.72×12.72 mm vs 13.56×13.56 mm
145.62 mm²   165.49 mm²
Face-up size outline for 10ct Emerald (13.56×13.56mm, cushion cut)
Face-up size outline for 10ct Diopside (12.72×12.72mm, cushion cut)
10ct Diopside Cushion (12.72×12.72mm)
10ct Emerald Cushion (13.56×13.56mm)
Difference: 14% (19.87 mm²)
10ct Emerald (Cushion, 13.56×13.56mm) has approx. 14% more face-up area than 10ct Diopside (Cushion, 12.72×12.72mm).


Popular comparisons: