2.5ct Peridot (Cushion, 8.05×8.05mm, Yellowish Green) vs 2ct Diamond (Round, 8.19×8.19mm, White)
Quick summary: When looked from above (face-up position), 2.5ct Peridot (8.05×8.05mm, cushion cut) appears 11% larger than 2ct Diamond (8.19×8.19mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Peridot (cushion cut) |
vs
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2ct Diamond (round cut) |
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yellowish green |
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| 8.05×8.05 mm | 8.19×8.19 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
2.5ct Peridot Cushion (8.05×8.05mm, Yellowish Green)
and
2ct Diamond Round (8.19×8.19mm, 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.
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.
| 2.5 Ct Peridot (Cushion) | 2 Ct Diamond (Round) | |
| 8.05×8.05 mm | vs | 8.19×8.19 mm |
| 58.32 mm² | 52.68 mm² |
| 2.5ct Peridot Cushion (8.05×8.05mm) | |
| 2ct Diamond Round (8.19×8.19mm) | |
| Difference: 11% (5.64 mm²) |
2.5ct Peridot (Cushion, 8.05×8.05mm) has approx. 11% more face-up area than 2ct Diamond (Round, 8.19×8.19mm).
Popular comparisons:
- 2.5ct Peridot (Cushion, Yellowish Green, 8.05 x 8.05) vs. 0.14ct Diamond (Princess, Dark Blue, 2.86 x 2.86)
- 2.5ct Peridot (Cushion, Yellowish Green, 8.05 x 8.05) vs. 2ct Amethyst (Cushion, Violet, 8.08 x 8.08)
- 7ct Peridot (Cushion, Yellowish Green, 11.35 x 11.35) vs. 2.5ct Peridot (Cushion, Yellowish Green, 8.05 x 8.05)
- 1ct Peridot (Cushion, Yellowish Green, 5.93 x 5.93) vs. 1ct Emerald (Cushion, Green, 6.37 x 6.37)
- 3.5ct Peridot (Cushion, Light Yellowish Green, 9.01 x 9.01) vs. 5ct Peridot (Oval, Light Yellowish Green, 13.5 x 9.5)
- 1.3ct Peridot (Cushion, Yellowish Green, 6 x 6) vs. 0.25ct Diamond (Round, White, 4.09 x 4.09)
- 5ct Peridot (Cushion, Yellowish Green, 10.14 x 10.14) vs. 0.7ct Diamond (Round, White, 5.77 x 5.77)
- 5ct Peridot (Cushion, Green, 10.14 x 10.14) vs. 0.7ct Diamond (Princess, White, 4.89 x 4.89)