1.8ct Emerald (Emerald, 8.86×6.56mm, Green) vs 3ct Sapphire (Emerald, 9.21×6.82mm, Blue)
Quick summary: When looked from above (face-up position), 3ct Sapphire (9.21×6.82mm, emerald cut) appears 8% larger than 1.8ct Emerald (8.86×6.56mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.8ct Emerald (emerald cut) |
vs
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3ct Sapphire (emerald cut) |
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green |
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| 8.86×6.56 mm | 9.21×6.82 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
1.8ct Emerald Emerald (8.86×6.56mm, Green)
and
3ct Sapphire Emerald (9.21×6.82mm, Blue)
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, Sapphire will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(4 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.
| 1.8 Ct Emerald (Emerald) | 3 Ct Sapphire (Emerald) | |
| 8.86×6.56 mm | vs | 9.21×6.82 mm |
| 54.05 mm² | 58.42 mm² |
| 1.8ct Emerald Emerald (8.86×6.56mm) | |
| 3ct Sapphire Emerald (9.21×6.82mm) | |
| Difference: 8% (4.37 mm²) |
3ct Sapphire (Emerald, 9.21×6.82mm) has approx. 8% more face-up area than 1.8ct Emerald (Emerald, 8.86×6.56mm).
Popular comparisons:
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 2.31ct Emerald (Emerald, Green, 9.63 x 7.13)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 3.15ct Emerald (Emerald, Green, 10.67 x 7.9)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 3ct Emerald (Emerald, Green, 10.5 x 7.78)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 1.7ct Tanzanite (Emerald, Blue, 8.13 x 6.02)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 7ct Emerald (Emerald, Green, 13.92 x 10.31)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 2.8ct Diopside (Emerald, Green, 9.6 x 7.11)
- 1.8ct Emerald (Emerald, Green, 8.86 x 6.56) vs. 2.8ct Diamond (Emerald, White, 9.42 x 6.98)