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10ct Peridot (Cabochon, 15.65×10.43mm, Yellowish Green) vs 10ct Diamond (Pear, 19.49×11.74mm, Light Purple)


Quick summary: When looked from above (face-up position), 10ct Colored Diamond (19.49×11.74mm, pear cut) appears 25% larger than 10ct Peridot (15.65×10.43mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

10ct Peridot (cabochon cut)
vs
 10ct Diamond (pear cut)
yellowish green
 
light purple
15.65×10.43 mm 19.49×11.74 mm
actual size
Actual size of 10ct Peridot (cabochon cut, 15.65×10.43mm, Yellowish Green color)   Actual size of 10ct Diamond (pear cut, 19.49×11.74mm, Light Purple color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 10ct Peridot (cabochon cut, 15.65×10.43mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Purple 10ct Diamond (pear cut, 19.49×11.74mm) 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
 62% vs 70%
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Ring diameter: 16.9 mm
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Actual sizes of 10ct Peridot Cabochon (15.65×10.43mm, Yellowish Green) and 10ct Diamond Pear (19.49×11.74mm, Light Purple) 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.


10 Ct Peridot (Cabochon) 10 Ct Colored Diamond (Pear)
15.65×10.43 mm vs 19.49×11.74 mm
133.85 mm²   167.03 mm²
Face-up size outline for 10ct Diamond (19.49×11.74mm, pear cut)
Face-up size outline for 10ct Peridot (15.65×10.43mm, cabochon cut)
10ct Peridot Cabochon (15.65×10.43mm)
10ct Colored Diamond Pear (19.49×11.74mm)
Difference: 25% (33.18 mm²)
10ct Colored Diamond (Pear, 19.49×11.74mm) has approx. 25% more face-up area than 10ct Peridot (Cabochon, 15.65×10.43mm).


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