15ct Diamond (Oval, 20.01×13.34mm, White) vs 20ct Emerald (Emerald, 19.76×14.64mm, Green)
Quick summary: When looked from above (face-up position), 20ct Emerald (19.76×14.64mm, emerald cut) appears 23% larger than 15ct Diamond (20.01×13.34mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 15ct Diamond (oval cut) |
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20ct Emerald (emerald cut) |
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white |
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| 20.01×13.34 mm | 19.76×14.64 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
15ct Diamond Oval (20.01×13.34mm, White)
and
20ct Emerald Emerald (19.76×14.64mm, 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.
| 15 Ct Diamond (Oval) | 20 Ct Emerald (Emerald) | |
| 20.01×13.34 mm | vs | 19.76×14.64 mm |
| 218.89 mm² | 269.04 mm² |
| 15ct Diamond Oval (20.01×13.34mm) | |
| 20ct Emerald Emerald (19.76×14.64mm) | |
| Difference: 23% (50.15 mm²) |
20ct Emerald (Emerald, 19.76×14.64mm) has approx. 23% more face-up area than 15ct Diamond (Oval, 20.01×13.34mm).
Popular comparisons:
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 20ct Diamond (Oval, White, 22.04 x 14.69)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 15ct Diamond (Baguette, White, 17.84 x 11.89)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 18ct Diamond (Oval, White, 21.27 x 14.18)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 11ct Diamond (Marquise, White, 23.1 x 11.55)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 15ct Diamond (Round, White, 16.03 x 16.03)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 9ct Diamond (Oval, White, 16.88 x 11.25)
- 15ct Diamond (Oval, White, 20.01 x 13.34) vs. 30ct Diamond (Emerald, White, 20.76 x 15.38)