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40ct Hiddenite (Round, 22.07×22.07mm, Light Green ) vs 40ct Diopside (Round, 21.8×21.8mm, Green)


Quick summary: When looked from above (face-up position), 40ct Hiddenite (22.07×22.07mm, round cut) appears 2% larger than 40ct Diopside (21.8×21.8mm, round cut). See below how they compare side-by-side on a ring and finger.

40ct Hiddenite (round cut)
vs
 40ct Diopside (round cut)
light green
 
green
22.07×22.07 mm 21.8×21.8 mm
actual size
Actual size of 40ct Hiddenite (round cut, 22.07×22.07mm, Light Green color)   Actual size of 40ct Diopside (round cut, 21.8×21.8mm, 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 40ct Hiddenite (round cut, 22.07×22.07mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 40ct Diopside (round cut, 21.8×21.8mm) 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
 131% vs 129%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Hiddenite Round (22.07×22.07mm, Light Green ) and 40ct Diopside Round (21.8×21.8mm, 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.


40 Ct Hiddenite (Round) 40 Ct Diopside (Round)
22.07×22.07 mm vs 21.8×21.8 mm
382.56 mm²   373.25 mm²
Face-up size outline for 40ct Hiddenite (22.07×22.07mm, round cut)
Face-up size outline for 40ct Diopside (21.8×21.8mm, round cut)
40ct Hiddenite Round (22.07×22.07mm)
40ct Diopside Round (21.8×21.8mm)
Difference: 2% (9.31 mm²)
40ct Hiddenite (Round, 22.07×22.07mm) has approx. 2% more face-up area than 40ct Diopside (Round, 21.8×21.8mm).


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