3ct Ruby (Emerald, 9.21×6.82mm, Red) vs 1ct Diamond (Pear, 9.05×5.45mm, White)
Quick summary: When looked from above (face-up position), 3ct Ruby (9.21×6.82mm, emerald cut) appears 62% larger than 1ct Diamond (9.05×5.45mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 3ct Ruby (emerald cut) |
vs
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1ct Diamond (pear cut) |
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red |
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| 9.21×6.82 mm | 9.05×5.45 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 Ruby Emerald (9.21×6.82mm, Red)
and
1ct Diamond Pear (9.05×5.45mm, 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 Ct Ruby (Emerald) | 1 Ct Diamond (Pear) | |
| 9.21×6.82 mm | vs | 9.05×5.45 mm |
| 58.42 mm² | 36.01 mm² |
| 3ct Ruby Emerald (9.21×6.82mm) | |
| 1ct Diamond Pear (9.05×5.45mm) | |
| Difference: 62% (22.41 mm²) |
3ct Ruby (Emerald, 9.21×6.82mm) has approx. 62% more face-up area than 1ct Diamond (Pear, 9.05×5.45mm).
Popular comparisons:
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 2ct Ruby (Round, Red, 7.53 x 7.53)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 5ct Ruby (Emerald, Red, 10.92 x 8.09)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 5ct Ruby (Cushion, Red, 9.56 x 9.56)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 4ct Ruby (Emerald, Red, 10.14 x 7.51)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 1ct Morganite (Pear, Light Purple, 9.46 x 5.7)
- 3ct Ruby (Emerald, Red, 9.21 x 6.82) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)