1.8ct Diamond (Round, 7.91×7.91mm, White) vs 1ct Emerald (Emerald, 7.28×5.39mm, Green)
Quick summary: When looked from above (face-up position), 1.8ct Diamond (7.91×7.91mm, round cut) appears 35% larger than 1ct Emerald (7.28×5.39mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.8ct Diamond (round cut) |
vs
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1ct Emerald (emerald cut) |
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white |
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| 7.91×7.91 mm | 7.28×5.39 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
1.8ct Diamond Round (7.91×7.91mm, White)
and
1ct Emerald Emerald (7.28×5.39mm, 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, Diamond will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(3.52 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.
| 1.8 Ct Diamond (Round) | 1 Ct Emerald (Emerald) | |
| 7.91×7.91 mm | vs | 7.28×5.39 mm |
| 49.14 mm² | 36.49 mm² |
| 1.8ct Diamond Round (7.91×7.91mm) | |
| 1ct Emerald Emerald (7.28×5.39mm) | |
| Difference: 35% (12.65 mm²) |
1.8ct Diamond (Round, 7.91×7.91mm) has approx. 35% more face-up area than 1ct Emerald (Emerald, 7.28×5.39mm).
Popular comparisons:
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 1.7ct Diamond (Round, White, 7.76 x 7.76)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 2.2ct Diamond (Round, White, 8.45 x 8.45)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 0.57ct Diamond (Round, White, 5.39 x 5.39)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 2.07ct Diamond (Round, White, 8.28 x 8.28)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 2.3ct Diamond (Round, White, 8.58 x 8.58)
- 1.8ct Diamond (Round, White, 7.91 x 7.91) vs. 1.5ct Sapphire (Oval, Light Violet, 8 x 5.5)