1ct Aquamarine (Cabochon, 7.8×5.2mm, Bluish Green) vs 1ct Amethyst (Baguette, 7.95×5.3mm, Dark Violet)
Quick summary: When looked from above (face-up position), 1ct Amethyst (7.95×5.3mm, baguette cut) appears 27% larger than 1ct Aquamarine (7.8×5.2mm, cabochon cut). See below how they compare side-by-side on a ring and finger.
| 1ct Aquamarine (cabochon cut) |
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1ct Amethyst (baguette cut) |
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bluish green |
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| 7.8×5.2 mm | 7.95×5.3 mm | |
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Actual sizes of
1ct Aquamarine Cabochon (7.8×5.2mm, Bluish Green)
and
1ct Amethyst Baguette (7.95×5.3mm, Dark 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
(2.7 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 (Cabochon) | 1 Ct Amethyst (Baguette) | |
| 7.8×5.2 mm | vs | 7.95×5.3 mm |
| 33.26 mm² | 42.14 mm² |
| 1ct Aquamarine Cabochon (7.8×5.2mm) | |
| 1ct Amethyst Baguette (7.95×5.3mm) | |
| Difference: 27% (8.88 mm²) |
1ct Amethyst Baguette (7.95×5.3mm) has approx. 27% more face-up area than 1ct Aquamarine Cabochon (7.8×5.2mm).
Popular comparisons:
- 1ct Aquamarine (Cabochon, Bluish Green, 7.8 x 5.2) vs. 1ct Topaz (Cabochon, Blue, 7.14 x 4.76)
- 1ct Aquamarine (Cabochon, Light Blue, 7.8 x 5.2) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Aquamarine (Cabochon, Light Blue, 11.25 x 7.5) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 20ct Aquamarine (Cabochon, Light Blue, 21.18 x 14.12) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Aquamarine (Cabochon, Light Blue, 6 x 6) vs. 1ct Diamond (Round, White, 6 x 6)
- 6ct Aquamarine (Cabochon, Light Blue, 14 x 10) vs. 7ct Aquamarine (Cabochon, Light Blue, 16 x 11)
- 1.5ct Aquamarine (Cabochon, Light Blue, 8.93 x 5.95) vs. 1.5ct Diamond (Cushion, White, 6.67 x 6.67)
- 1.5ct Aquamarine (Cabochon, Light Blue, 8.93 x 5.95) vs. 1.5ct Sapphire (Cabochon, Blue, 7.83 x 5.22)
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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.