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3ct Peridot (Round, 9.15×9.15mm, Yellowish Green) vs 3ct Zircon (Oval, 10.38×6.92mm, Orange)


Quick summary: When looked from above (face-up position), 3ct Peridot (9.15×9.15mm, round cut) appears 12% larger than 3ct Zircon (10.38×6.92mm, oval cut). See below how they compare side-by-side on a ring and finger.

3ct Peridot (round cut)
vs
 3ct Zircon (oval cut)
yellowish green
 
orange
9.15×9.15 mm 10.38×6.92 mm
actual size
Actual size of 3ct Peridot (round cut, 9.15×9.15mm, Yellowish Green color)   Actual size of 3ct Zircon (oval cut, 10.38×6.92mm, Orange color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 3ct Peridot (round cut, 9.15×9.15mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 3ct Zircon (oval cut, 10.38×6.92mm) 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
 55% vs 41%
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Ring diameter: 16.9 mm
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Actual sizes of 3ct Peridot Round (9.15×9.15mm, Yellowish Green) and 3ct Zircon Oval (10.38×6.92mm, Orange) 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, Zircon will face-up smaller than Peridot for a given carat weight, because it has higher specific gravity (4.7 vs. 3.34 - this means it's "heavier" compared to Peridot 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.


3 Ct Peridot (Round) 3 Ct Zircon (Oval)
9.15×9.15 mm vs 10.38×6.92 mm
65.76 mm²   58.9 mm²
Face-up size outline for 3ct Peridot (9.15×9.15mm, round cut)
Face-up size outline for 3ct Zircon (10.38×6.92mm, oval cut)
3ct Peridot Round (9.15×9.15mm)
3ct Zircon Oval (10.38×6.92mm)
Difference: 12% (6.86 mm²)
3ct Peridot (Round, 9.15×9.15mm) has approx. 12% more face-up area than 3ct Zircon (Oval, 10.38×6.92mm).


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