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40ct Peridot (Oval, 27.84×18.56mm, Yellowish Green) vs 40ct Hiddenite (Oval, 28.31×18.87mm, Light Green )


Quick summary: When looked from above (face-up position), 40ct Hiddenite (28.31×18.87mm, oval cut) appears 3% larger than 40ct Peridot (27.84×18.56mm, oval cut). See below how they compare side-by-side on a ring and finger.

40ct Peridot (oval cut)
vs
40ct Hiddenite (oval cut)
yellowish green
 
light green
27.84×18.56 mm 28.31×18.87 mm
actual size
Actual size of 40ct Peridot (oval cut, 27.84×18.56mm, Yellowish Green color)   Actual size of 40ct Hiddenite (oval cut, 28.31×18.87mm, Light Green  color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 40ct Peridot (oval cut, 27.84×18.56mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Green  40ct Hiddenite (oval cut, 28.31×18.87mm) 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
110% vs 112%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 40ct Peridot Oval (27.84×18.56mm, Yellowish Green) and 40ct Hiddenite Oval (28.31×18.87mm, Light 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, Peridot will face-up smaller than Hiddenite for a given carat weight, because it has higher specific gravity (3.34 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 Peridot (Oval) 40 Ct Hiddenite (Oval)
27.84×18.56 mm vs 28.31×18.87 mm
423.7 mm²   438.05 mm²
Face-up size outline for 40ct Hiddenite (28.31×18.87mm, oval cut)
Face-up size outline for 40ct Peridot (27.84×18.56mm, oval cut)
40ct Peridot Oval (27.84×18.56mm)
40ct Hiddenite Oval (28.31×18.87mm)
Difference: 3% (14.35 mm²)
40ct Hiddenite (Oval, 28.31×18.87mm) has approx. 3% more face-up area than 40ct Peridot (Oval, 27.84×18.56mm).


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