3ct Aquamarine (Round, 9.83×9.83mm, Light Blue) vs 3ct Diamond (Round, 9.37×9.37mm, White)
Quick summary: When looked from above (face-up position), 3ct Aquamarine (9.83×9.83mm, round cut) appears 10% larger than 3ct Diamond (9.37×9.37mm, round cut). See below how they compare side-by-side on a ring and finger.
| 3ct Aquamarine (round cut) |
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3ct Diamond (round cut) |
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light blue |
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| 9.83×9.83 mm | 9.37×9.37 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 Aquamarine Round (9.83×9.83mm, Light Blue)
and
3ct Diamond Round (9.37×9.37mm, 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 Aquamarine for a given
carat weight, because it has higher specific gravity
(3.52 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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 Aquamarine (Round) | 3 Ct Diamond (Round) | |
| 9.83×9.83 mm | vs | 9.37×9.37 mm |
| 75.89 mm² | 68.96 mm² |
| 3ct Aquamarine Round (9.83×9.83mm) | |
| 3ct Diamond Round (9.37×9.37mm) | |
| Difference: 10% (6.93 mm²) |
3ct Aquamarine (Round, 9.83×9.83mm) has approx. 10% more face-up area than 3ct Diamond (Round, 9.37×9.37mm).
Popular comparisons:
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 3ct Aquamarine (Oval, Light Blue, 12.44 x 8.29)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 3ct Emerald (Round, Green, 9.83 x 9.83)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 2ct Aquamarine (Round, Light Blue, 8.59 x 8.59)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 2ct Ruby (Oval, Red, 9.53 x 6.35)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 3ct Emerald (Emerald, Green, 10.5 x 7.78)
- 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83) vs. 2.31ct Tanzanite (Round, Blue, 8.43 x 8.43)
Use the simulator on this page to play around with different ring and finger configurations.