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40ct Hiddenite (Emerald, 23.57×17.46mm, Light Green ) vs 40ct Diopside (Emerald, 23.29×17.25mm, Green)


Quick summary: When looked from above (face-up position), 40ct Hiddenite (23.57×17.46mm, emerald cut) appears 2% larger than 40ct Diopside (23.29×17.25mm, emerald cut). See below how they compare side-by-side on a ring and finger.

40ct Hiddenite (emerald cut)
vs
40ct Diopside (emerald cut)
light green
 
green
23.57×17.46 mm 23.29×17.25 mm
actual size
Actual size of 40ct Hiddenite (emerald cut, 23.57×17.46mm, Light Green  color)   Actual size of 40ct Diopside (emerald cut, 23.29×17.25mm, 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 (emerald cut, 23.57×17.46mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 40ct Diopside (emerald cut, 23.29×17.25mm) 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
104% vs 103%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Hiddenite Emerald (23.57×17.46mm, Light Green ) and 40ct Diopside Emerald (23.29×17.25mm, 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 (Emerald) 40 Ct Diopside (Emerald)
23.57×17.46 mm vs 23.29×17.25 mm
382.72 mm²   373.63 mm²
Face-up size outline for 40ct Hiddenite (23.57×17.46mm, emerald cut)
Face-up size outline for 40ct Diopside (23.29×17.25mm, emerald cut)
40ct Hiddenite Emerald (23.57×17.46mm)
40ct Diopside Emerald (23.29×17.25mm)
Difference: 2% (9.09 mm²)
40ct Hiddenite (Emerald, 23.57×17.46mm) has approx. 2% more face-up area than 40ct Diopside (Emerald, 23.29×17.25mm).


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