3ct Emerald (Marquise, 16.22×8.11mm, Green) vs 3ct Diamond (Oval, 11.7×7.8mm, White)
Quick summary: When looked from above (face-up position), 3ct Emerald (16.22×8.11mm, marquise cut) appears 25% larger than 3ct Diamond (11.7×7.8mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 3ct Emerald (marquise cut) |
vs
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3ct Diamond (oval cut) |
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green |
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| 16.22×8.11 mm | 11.7×7.8 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
3ct Emerald Marquise (16.22×8.11mm, Green)
and
3ct Diamond Oval (11.7×7.8mm, White)
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.
| 3 Ct Emerald (Marquise) | 3 Ct Diamond (Oval) | |
| 16.22×8.11 mm | vs | 11.7×7.8 mm |
| 93.4 mm² | 74.83 mm² |
| 3ct Emerald Marquise (16.22×8.11mm) | |
| 3ct Diamond Oval (11.7×7.8mm) | |
| Difference: 25% (18.57 mm²) |
3ct Emerald (Marquise, 16.22×8.11mm) has approx. 25% more face-up area than 3ct Diamond (Oval, 11.7×7.8mm).
Popular comparisons:
- 0.3ct Emerald (Marquise, Dark Green, 7.54 x 3.77) vs. 0.3ct Diopside (Marquise, Green, 7.04 x 3.52)
- 0.3ct Emerald (Marquise, Dark Green, 7.54 x 3.77) vs. 0.2ct Emerald (Marquise, Dark Green, 6.58 x 3.29)
- 1.5ct Emerald (Marquise, Dark Bluish Green, 12.88 x 6.44) vs. 2ct Emerald (Marquise, Dark Green, 14.18 x 7.09)
- 1.1ct Emerald (Marquise, Green, 14 x 5) vs. 2.7ct Tanzanite (Cushion, Blue, 8.2 x 7.2)
- 1ct Emerald (Marquise, Green, 11.26 x 5.63) vs. 1ct Emerald (Pear, Green, 9.46 x 5.7)
- 0.2ct Emerald (Marquise, Green, 6.58 x 3.29) vs. 0.8ct Emerald (Emerald, Green, 6.76 x 5.01)
- 0.3ct Emerald (Marquise, Dark Green, 7.54 x 3.77) vs. 0.1ct Emerald (Marquise, Dark Green, 5.22 x 2.61)
- 0.7ct Emerald (Marquise, Green, 10 x 5) vs. 0.06ct Diamond (Marquise, White, 4.06 x 2.03)