3.5ct Ruby (Emerald, 9.69×7.18mm, Red) vs 2.75ct Diamond (Emerald, 9.36×6.93mm, White)
Quick summary: When looked from above (face-up position), 3.5ct Ruby (9.69×7.18mm, emerald cut) appears 7% larger than 2.75ct Diamond (9.36×6.93mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 3.5ct Ruby (emerald cut) |
vs
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2.75ct Diamond (emerald cut) |
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red |
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| 9.69×7.18 mm | 9.36×6.93 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
3.5ct Ruby Emerald (9.69×7.18mm, Red)
and
2.75ct Diamond Emerald (9.36×6.93mm, 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, Ruby will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.
| 3.5 Ct Ruby (Emerald) | 2.75 Ct Diamond (Emerald) | |
| 9.69×7.18 mm | vs | 9.36×6.93 mm |
| 64.7 mm² | 60.32 mm² |
| 3.5ct Ruby Emerald (9.69×7.18mm) | |
| 2.75ct Diamond Emerald (9.36×6.93mm) | |
| Difference: 7% (4.38 mm²) |
3.5ct Ruby (Emerald, 9.69×7.18mm) has approx. 7% more face-up area than 2.75ct Diamond (Emerald, 9.36×6.93mm).
Popular comparisons:
- 2.5ct Ruby (Emerald, Red, 8.67 x 6.42) vs. 2.5ct Diamond (Emerald, White, 9.07 x 6.72)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 2ct Ruby (Round, Red, 7.53 x 7.53)
- 1ct Ruby (Emerald, Red, 6.39 x 4.73) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Ruby (Emerald, Red, 10.92 x 8.09) vs. 5ct Ruby (Oval, Red, 12.93 x 8.62)
- 0.47ct Ruby (Emerald, Red, 4.97 x 3.68) vs. 0.6ct Emerald (Emerald, Green, 6.14 x 4.55)
- 1ct Ruby (Emerald, Red, 6.39 x 4.73) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 5ct Ruby (Emerald, Red, 10.92 x 8.09) vs. 5ct Emerald (Emerald, Green, 12.45 x 9.22)