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1.25ct Diopside (Cabochon, 7.86×5.24mm, Green) vs 1.25ct Peridot (Cabochon, 7.83×5.22mm, Yellowish Green)


Quick summary: When looked from above (face-up position), 1.25ct Diopside (7.86×5.24mm, cabochon cut) appears 0.7% larger than 1.25ct Peridot (7.83×5.22mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

1.25ct Diopside (cabochon cut)
vs
 1.25ct Peridot (cabochon cut)
green
 
yellowish green
7.86×5.24 mm 7.83×5.22 mm
actual size
Actual size of 1.25ct Diopside (cabochon cut, 7.86×5.24mm, Green color)   Actual size of 1.25ct Peridot (cabochon cut, 7.83×5.22mm, 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 1.25ct Diopside (cabochon cut, 7.86×5.24mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Yellowish Green 1.25ct Peridot (cabochon cut, 7.83×5.22mm) 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
 32% vs 31%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.25ct Diopside Cabochon (7.86×5.24mm, Green) and 1.25ct Peridot Cabochon (7.83×5.22mm, 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.


1.25 Ct Diopside (Cabochon) 1.25 Ct Peridot (Cabochon)
7.86×5.24 mm vs 7.83×5.22 mm
33.77 mm²   33.52 mm²
Face-up size outline for 1.25ct Diopside (7.86×5.24mm, cabochon cut)
Face-up size outline for 1.25ct Peridot (7.83×5.22mm, cabochon cut)
1.25ct Diopside Cabochon (7.86×5.24mm)
1.25ct Peridot Cabochon (7.83×5.22mm)
Difference: 0.7% (0.25 mm²)
1.25ct Diopside (Cabochon, 7.86×5.24mm) has approx. 0.7% more face-up area than 1.25ct Peridot (Cabochon, 7.83×5.22mm).


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