1ct Aquamarine (Round, 6.82×6.82mm, Light Blue) vs 1ct Amethyst (Round, 6.86×6.86mm, Violet)
Quick summary: When looked from above (face-up position), 1ct Amethyst (6.86×6.86mm, round cut) appears 1% larger than 1ct Aquamarine (6.82×6.82mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1ct Aquamarine (round cut) |
vs
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1ct Amethyst (round cut) |
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light blue |
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| 6.82×6.82 mm | 6.86×6.86 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 Aquamarine Round (6.82×6.82mm, Light Blue)
and
1ct Amethyst Round (6.86×6.86mm, Violet)
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, Aquamarine will face-up slightly smaller than Amethyst for a given
carat weight, because it has higher specific gravity
(2.72 vs. 2.65 - this means it's "slightly heavier" compared to Amethyst 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 Aquamarine (Round) | 1 Ct Amethyst (Round) | |
| 6.82×6.82 mm | vs | 6.86×6.86 mm |
| 36.53 mm² | 36.96 mm² |
| 1ct Aquamarine Round (6.82×6.82mm) | |
| 1ct Amethyst Round (6.86×6.86mm) | |
| Difference: 1% (0.43 mm²) |
1ct Amethyst (Round, 6.86×6.86mm) has approx. 1% more face-up area than 1ct Aquamarine (Round, 6.82×6.82mm).
Popular comparisons:
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 2ct Aquamarine (Round, Light Blue, 8.59 x 8.59)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 1.5ct Aquamarine (Round, Light Blue, 7.8 x 7.8)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 0.55ct Aquamarine (Round, Light Blue, 5.58 x 5.58)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 1.5ct Diamond (Round, White, 7.44 x 7.44)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 2ct Emerald (Trillion, Green, 10.1 x 10.1)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 0.7ct Aquamarine (Round, Light Blue, 6.05 x 6.05)