20ct Diamond (Marquise, 28.2×14.1mm, White) vs 1ct Emerald (Round, 6.82×6.82mm, Green)
Quick summary: When looked from above (face-up position), 20ct Diamond (28.2×14.1mm, marquise cut) appears 7.7 times larger than 1ct Emerald (6.82×6.82mm, round cut). See below how they compare side-by-side on a ring and finger.
| 20ct Diamond (marquise cut) |
vs
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1ct Emerald (round cut) |
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white |
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| 28.2×14.1 mm | 6.82×6.82 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
20ct Diamond Marquise (28.2×14.1mm, White)
and
1ct Emerald Round (6.82×6.82mm, 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.
| 20 Ct Diamond (Marquise) | 1 Ct Emerald (Round) | |
| 28.2×14.1 mm | vs | 6.82×6.82 mm |
| 282.31 mm² | 36.53 mm² |
| 20ct Diamond Marquise (28.2×14.1mm) | |
| 1ct Emerald Round (6.82×6.82mm) | |
| Difference: 673% (245.78 mm²) |
20ct Diamond (Marquise, 28.2×14.1mm) has approx. 673% more face-up area than 1ct Emerald (Round, 6.82×6.82mm). In other words, it's 7.73x larger.
Popular comparisons:
- 20ct Diamond (Marquise, White, 28.2 x 14.1) vs. 1ct Diamond (Marquise, White, 10.38 x 5.19)
- 20ct Diamond (Marquise, White, 28.2 x 14.1) vs. 22ct Diamond (Oval, White, 22.74 x 15.16)
- 20ct Diamond (Marquise, White, 28.2 x 14.1) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 20ct Diamond (Marquise, White, 28.2 x 14.1) vs. 1ct Emerald (Marquise, Green, 11.26 x 5.63)
- 20ct Diamond (Marquise, White, 28.2 x 14.1) vs. 2.5ct Diamond (Marquise, White, 14.1 x 7.05)
- 20ct Diamond (Marquise, White, 28.2 x 14.1) vs. 15.5ct Diamond (Pear, White, 22.56 x 13.59)
- 0.3ct Diamond (Marquise, White, 7 x 3.5) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)