3ct Ruby (Emerald, 9×7mm, Red) vs 1.54ct Diamond (Oval, 9.65×6.42mm, Bluish Green)
Quick summary: When looked from above (face-up position), 3ct Ruby (9×7mm, emerald cut) appears 15% larger than 1.54ct Diamond (9.65×6.42mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 3ct Ruby (emerald cut) |
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1.54ct Diamond (oval cut) |
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red |
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| 9×7 mm | 9.65×6.42 mm | |
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Actual sizes of
3ct Ruby Emerald (9×7mm, Red)
and
1.54ct Diamond Oval (9.65×6.42mm, Bluish Green)
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) | 1.54 Ct Diamond (Oval) | |
| 9×7 mm | vs | 9.65×6.42 mm |
| 58.59 mm² | 50.8 mm² |
| 3ct Ruby Emerald (9×7mm) | |
| 1.54ct Diamond Oval (9.65×6.42mm) | |
| Difference: 15% (7.79 mm²) |
3ct Ruby Emerald (9×7mm) has approx. 15% more face-up area than 1.54ct Diamond Oval (9.65×6.42mm).
Popular comparisons:
- 3ct Ruby (Emerald, Red, 9 x 7) vs. 2.16ct Emerald (Emerald, Green, 7.99 x 7.76)
- 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)
- 0.7ct Ruby (Emerald, Red, 5.67 x 4.2) vs. 0.7ct Ruby (Emerald, Dark Red, 5.67 x 4.2)
- 1ct Ruby (Emerald, Red, 6.39 x 4.73) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.