18ct Diamond (Princess, 14.44×14.44mm, White) vs 18ct Emerald (Princess, 15.65×15.65mm, Green)
Quick summary: When looked from above (face-up position), 18ct Emerald (15.65×15.65mm, princess cut) appears 17% larger than 18ct Diamond (14.44×14.44mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 18ct Diamond (princess cut) |
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18ct Emerald (princess cut) |
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white |
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| 14.44×14.44 mm | 15.65×15.65 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
18ct Diamond Princess (14.44×14.44mm, White)
and
18ct Emerald Princess (15.65×15.65mm, 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.
| 18 Ct Diamond (Princess) | 18 Ct Emerald (Princess) | |
| 14.44×14.44 mm | vs | 15.65×15.65 mm |
| 208.51 mm² | 244.92 mm² |
| 18ct Diamond Princess (14.44×14.44mm) | |
| 18ct Emerald Princess (15.65×15.65mm) | |
| Difference: 17% (36.41 mm²) |
18ct Emerald (Princess, 15.65×15.65mm) has approx. 17% more face-up area than 18ct Diamond (Princess, 14.44×14.44mm).
Popular comparisons:
- 0.2ct Diamond (Princess, White, 3.22 x 3.22) vs. 0.3ct Diamond (Princess, White, 3.69 x 3.69)
- 0.7ct Diamond (Princess, White, 4.83 x 4.82) vs. 0.7ct Diamond (Princess, White, 4.82 x 4.77)
- 1.53ct Diamond (Princess, White, 6.34 x 6.39) vs. 1.24ct Diamond (Emerald, White, 6.01 x 6.12)
- 0.7ct Diamond (Princess, White, 4.83 x 4.82) vs. 0.6ct Diamond (Round, White, 5.45 x 5.46)
- 0.37ct Diamond (Princess, White, 3.96 x 3.96) vs. 1ct Sapphire (Princess, White, 5.37 x 5.37)
- 1ct Diamond (Princess, White, 5.51 x 5.51) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.7ct Diamond (Princess, White, 4.83 x 4.82) vs. 0.61ct Diamond (Round, White, 5.42 x 5.44)
- 0.8ct Diamond (Princess, White, 5.12 x 5.12) vs. 0.75ct Diamond (Princess, White, 5.01 x 5.01)
- 1ct Diamond (Princess, White, 5.51 x 5.51) vs. 1.5ct Diamond (Princess, White, 6.31 x 6.31)