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12ct Hiddenite (Cushion, 13.68×13.68mm, Light Green ) vs 12ct Diopside (Cushion, 13.51×13.51mm, Green)


Quick summary: When looked from above (face-up position), 12ct Hiddenite (13.68×13.68mm, cushion cut) appears 3% larger than 12ct Diopside (13.51×13.51mm, cushion cut). See below how they compare side-by-side on a ring and finger.

12ct Hiddenite (cushion cut)
vs
 12ct Diopside (cushion cut)
light green
 
green
13.68×13.68 mm 13.51×13.51 mm
actual size
Actual size of 12ct Hiddenite (cushion cut, 13.68×13.68mm, Light Green color)   Actual size of 12ct Diopside (cushion cut, 13.51×13.51mm, Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Green 12ct Hiddenite (cushion cut, 13.68×13.68mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 12ct Diopside (cushion cut, 13.51×13.51mm) 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
 81% vs 80%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 12ct Hiddenite Cushion (13.68×13.68mm, Light Green ) and 12ct Diopside Cushion (13.51×13.51mm, 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 Hiddenite for a given carat weight, because it has higher specific gravity (3.3 vs. 3.18 - this means it's "heavier" compared to Hiddenite 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.


12 Ct Hiddenite (Cushion) 12 Ct Diopside (Cushion)
13.68×13.68 mm vs 13.51×13.51 mm
168.43 mm²   164.27 mm²
Face-up size outline for 12ct Hiddenite (13.68×13.68mm, cushion cut)
Face-up size outline for 12ct Diopside (13.51×13.51mm, cushion cut)
12ct Hiddenite Cushion (13.68×13.68mm)
12ct Diopside Cushion (13.51×13.51mm)
Difference: 3% (4.16 mm²)
12ct Hiddenite (Cushion, 13.68×13.68mm) has approx. 3% more face-up area than 12ct Diopside (Cushion, 13.51×13.51mm).


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