1ct Emerald (Cabochon, 7.8×5.2mm, Green) vs 1ct Diamond (Cabochon, 7.14×4.76mm, White)
Quick summary: When looked from above (face-up position), 1ct Emerald (7.8×5.2mm, cabochon cut) appears 19% larger than 1ct Diamond (7.14×4.76mm, cabochon cut). See below how they compare side-by-side on a ring and finger.
| 1ct Emerald (cabochon cut) |
vs
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1ct Diamond (cabochon cut) |
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green |
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| 7.8×5.2 mm | 7.14×4.76 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
1ct Emerald Cabochon (7.8×5.2mm, Green)
and
1ct Diamond Cabochon (7.14×4.76mm, 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.
| 1 Ct Emerald (Cabochon) | 1 Ct Diamond (Cabochon) | |
| 7.8×5.2 mm | vs | 7.14×4.76 mm |
| 33.26 mm² | 27.87 mm² |
| 1ct Emerald Cabochon (7.8×5.2mm) | |
| 1ct Diamond Cabochon (7.14×4.76mm) | |
| Difference: 19% (5.39 mm²) |
1ct Emerald (Cabochon, 7.8×5.2mm) has approx. 19% more face-up area than 1ct Diamond (Cabochon, 7.14×4.76mm).
Popular comparisons:
- 1ct Emerald (Cabochon, Green, 7.8 x 5.2) vs. 1ct Ruby (Emerald, Red, 6.39 x 4.73)
- 1ct Emerald (Cabochon, Green, 7.8 x 5.2) vs. 1ct Emerald (Cushion, Green, 6.37 x 6.37)
- 1ct Emerald (Cabochon, Green, 7.8 x 5.2) vs. 4ct Emerald (Cabochon, Green, 12.39 x 8.26)
- 1ct Emerald (Cabochon, Green, 7.8 x 5.2) vs. 1ct Emerald (Round, Green, 6.82 x 6.82)
- 5ct Emerald (Cabochon, Green, 10 x 10) vs. 5ct Diamond (Cabochon, White, 12.21 x 8.14)
- 34ct Emerald (Cabochon, Green, 25.28 x 16.85) vs. 20ct Diamond (Round, White, 17.64 x 17.64)
- 1ct Emerald (Cabochon, Green, 8.2 x 6) vs. 1ct Emerald (Oval, Green, 8.63 x 5.75)
- 19.2ct Emerald (Cabochon, Dark Green, 20.9 x 13.93) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)