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2ct Diopside (Cabochon, 9.2×6.13mm, Green) vs 2ct Peridot (Cabochon, 9.15×6.1mm, Yellowish Green)


Quick summary: When looked from above (face-up position), 2ct Diopside (9.2×6.13mm, cabochon cut) appears 1% larger than 2ct Peridot (9.15×6.1mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

2ct Diopside (cabochon cut)
vs
2ct Peridot (cabochon cut)
green
 
yellowish green
9.2×6.13 mm 9.15×6.1 mm
actual size
Actual size of 2ct Diopside (cabochon cut, 9.2×6.13mm, Green color)   Actual size of 2ct Peridot (cabochon cut, 9.15×6.1mm, Yellowish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 2ct Diopside (cabochon cut, 9.2×6.13mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Yellowish Green 2ct Peridot (cabochon cut, 9.15×6.1mm) 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
37% vs 37%
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Ring diameter: 16.9 mm
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Actual sizes of 2ct Diopside Cabochon (9.2×6.13mm, Green) and 2ct Peridot Cabochon (9.15×6.1mm, 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

All things being equal, Peridot will face-up slightly smaller than Diopside for a given carat weight, because it has higher specific gravity (3.34 vs. 3.3 - this means it's "slightly heavier" compared to Diopside 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.


2 Ct Diopside (Cabochon) 2 Ct Peridot (Cabochon)
9.2×6.13 mm vs 9.15×6.1 mm
46.24 mm²   45.77 mm²
Face-up size outline for 2ct Diopside (9.2×6.13mm, cabochon cut)
Face-up size outline for 2ct Peridot (9.15×6.1mm, cabochon cut)
2ct Diopside Cabochon (9.2×6.13mm)
2ct Peridot Cabochon (9.15×6.1mm)
Difference: 1% (0.47 mm²)
2ct Diopside (Cabochon, 9.2×6.13mm) has approx. 1% more face-up area than 2ct Peridot (Cabochon, 9.15×6.1mm).


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