12ct Diamond (Pear, 20.72×12.48mm, White) vs 1ct Emerald (Emerald, 7.28×5.39mm, Green)
Quick summary: When looked from above (face-up position), 12ct Diamond (20.72×12.48mm, pear cut) appears 5.2 times larger than 1ct Emerald (7.28×5.39mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 12ct Diamond (pear cut) |
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1ct Emerald (emerald cut) |
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white |
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| 20.72×12.48 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
12ct Diamond Pear (20.72×12.48mm, 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.
| 12 Ct Diamond (Pear) | 1 Ct Emerald (Emerald) | |
| 20.72×12.48 mm | vs | 7.28×5.39 mm |
| 188.77 mm² | 36.49 mm² |
| 12ct Diamond Pear (20.72×12.48mm) | |
| 1ct Emerald Emerald (7.28×5.39mm) | |
| Difference: 417% (152.28 mm²) |
12ct Diamond (Pear, 20.72×12.48mm) has approx. 417% more face-up area than 1ct Emerald (Emerald, 7.28×5.39mm). In other words, it's 5.17x larger.
Popular comparisons:
- 12ct Diamond (Pear, White, 20.72 x 12.48) vs. 1.57ct Diamond (Pear, White, 10.4 x 6.47)
- 12ct Diamond (Pear, White, 20.72 x 12.48) vs. 0.2ct Diamond (Pear, White, 5.3 x 3.19)
- 12ct Diamond (Pear, White, 20.72 x 12.48) vs. 1ct Emerald (Round, Green, 6.82 x 6.82)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 3.3ct Topaz (Pear, Blue, 12.9 x 7.77)
- 0.8ct Diamond (Pear, White, 8.4 x 5.06) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Diamond (Pear, White, 8 x 6) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Diamond (Pear, White, 9.05 x 5.45) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.3ct Diamond (Pear, White, 6.06 x 3.65) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)