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3ct Peridot (Round, 9.15×9.15mm, Yellowish Green) vs 4ct Peridot (Round, 10.07×10.07mm, Yellowish Green)


Quick summary: When looked from above (face-up position), 4ct Peridot (10.07×10.07mm, round cut) appears 21% larger than 3ct Peridot (9.15×9.15mm, round cut). See below how they compare side-by-side on a ring and finger.

3ct Peridot (round cut)
vs
 4ct Peridot (round cut)
yellowish green
 
yellowish green
9.15×9.15 mm 10.07×10.07 mm
actual size
Actual size of 3ct Peridot (round cut, 9.15×9.15mm, Yellowish Green color)   Actual size of 4ct Peridot (round cut, 10.07×10.07mm, Yellowish 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 3ct Peridot (round cut, 9.15×9.15mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Yellowish Green 4ct Peridot (round cut, 10.07×10.07mm) 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 60%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Peridot Round (9.15×9.15mm, Yellowish Green) and 4ct Peridot Round (10.07×10.07mm, Yellowish 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

The face-up size depends on the shape of the gem, its weight and 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) 4 Ct Peridot (Round)
9.15×9.15 mm vs 10.07×10.07 mm
65.76 mm²   79.64 mm²
Face-up size outline for 4ct Peridot (10.07×10.07mm, round cut)
Face-up size outline for 3ct Peridot (9.15×9.15mm, round cut)
3ct Peridot Round (9.15×9.15mm)
4ct Peridot Round (10.07×10.07mm)
Difference: 21% (13.88 mm²)
4ct Peridot (Round, 10.07×10.07mm) has approx. 21% more face-up area than 3ct Peridot (Round, 9.15×9.15mm).


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