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1.21ct Peridot (Pear, 9.4×5.66mm, Yellowish Green) vs 1.3ct Diamond (Oval, 8.87×5.91mm, White)


Quick summary: When looked from above (face-up position), 1.3ct Diamond (8.87×5.91mm, oval cut) appears 11% larger than 1.21ct Peridot (9.4×5.66mm, pear cut). See below how they compare side-by-side on a ring and finger.

1.21ct Peridot (pear cut)
vs
 1.3ct Diamond (oval cut)
yellowish green
 
white
9.4×5.66 mm 8.87×5.91 mm
actual size
Actual size of 1.21ct Peridot (pear cut, 9.4×5.66mm, Yellowish Green color)   Actual size of 1.3ct Diamond (oval cut, 8.87×5.91mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 1.21ct Peridot (pear cut, 9.4×5.66mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.3ct Diamond (oval cut, 8.87×5.91mm) 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
 34% vs 35%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.21ct Peridot Pear (9.4×5.66mm, Yellowish Green) and 1.3ct Diamond Oval (8.87×5.91mm, White) 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, Diamond will face-up smaller than Peridot for a given carat weight, because it has higher specific gravity (3.52 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.


1.21 Ct Peridot (Pear) 1.3 Ct Diamond (Oval)
9.4×5.66 mm vs 8.87×5.91 mm
38.84 mm²   42.99 mm²
Face-up size outline for 1.3ct Diamond (8.87×5.91mm, oval cut)
Face-up size outline for 1.21ct Peridot (9.4×5.66mm, pear cut)
1.21ct Peridot Pear (9.4×5.66mm)
1.3ct Diamond Oval (8.87×5.91mm)
Difference: 11% (4.15 mm²)
1.3ct Diamond (Oval, 8.87×5.91mm) has approx. 11% more face-up area than 1.21ct Peridot (Pear, 9.4×5.66mm).


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