1ct Diaspore (Cushion, 5.84×5.84mm, Yellowish Green) vs 1ct Emerald (Emerald, 7.26×5.38mm, Dark Yellowish Green)
Quick summary: When looked from above (face-up position), 1ct Emerald (7.26×5.38mm, emerald cut) appears 18% larger than 1ct Diaspore (5.84×5.84mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 1ct Diaspore (cushion cut) |
vs
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1ct Emerald (emerald cut) |
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yellowish green |
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| 5.84×5.84 mm | 7.26×5.38 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
1ct Diaspore Cushion (5.84×5.84mm, Yellowish Green)
and
1ct Emerald Emerald (7.26×5.38mm, Dark 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, Diaspore will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(3.4 vs. 2.72 - this means it's "heavier" compared to Emerald 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.
| 1 Ct Diaspore (Cushion) | 1 Ct Emerald (Emerald) | |
| 5.84×5.84 mm | vs | 7.26×5.38 mm |
| 30.7 mm² | 36.32 mm² |
| 1ct Diaspore Cushion (5.84×5.84mm) | |
| 1ct Emerald Emerald (7.26×5.38mm) | |
| Difference: 18% (5.62 mm²) |
1ct Emerald (Emerald, 7.26×5.38mm) has approx. 18% more face-up area than 1ct Diaspore (Cushion, 5.84×5.84mm).
Popular comparisons:
- 2ct Diaspore (Cushion, Light Yellowish Green, 7.44 x 7.44) vs. 0.75ct Spinel (Pear, Red, 7.82 x 4.71)
- 1ct Diaspore (Cushion, Light Yellowish Green, 5.9 x 5.9) vs. 1ct Alexandrite (Oval, Bluish Green, 7.77 x 5.18)
- 1ct Diaspore (Cushion, Light Yellowish Green, 5.9 x 5.9) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 7ct Diaspore (Cushion, Light Yellowish Green, 11.29 x 11.29) vs. 19ct Emerald (Emerald, Green, 19.43 x 14.39)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)