1ct Alexandrite (Round, 7×7mm, Bluish Green) vs 1ct Amethyst (Round, 7×7mm, Violet)
Quick summary: Compared gemstones have equal face-up area.
| 1ct Alexandrite (round cut) |
vs
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1ct Amethyst (round cut) |
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bluish green |
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| 7×7 mm | 7×7 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 Alexandrite Round (7×7mm, Bluish Green)
and
1ct Amethyst Round (7×7mm, 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, Alexandrite will face-up smaller than Amethyst for a given
carat weight, because it has higher specific gravity
(3.73 vs. 2.65 - this means it's "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 Alexandrite (Round) | 1 Ct Amethyst (Round) | |
| 7×7 mm | vs | 7×7 mm |
| 38.48 mm² | 38.48 mm² |
| 1ct Alexandrite Round (7×7mm) | |
| 1ct Amethyst Round (7×7mm) | |
| Difference: 0% (0 mm²) |
1ct Alexandrite (Round, 7×7mm) and 1ct Amethyst (Round, 7×7mm) have the same face-up area.
Popular comparisons:
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Emerald (Round, Green, 6.82 x 6.82)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Emerald (Emerald, Green, 6.5 x 6.5)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Alexandrite (Emerald, Bluish Green, 6.55 x 4.85)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Emerald (Emerald, Green, 8 x 6)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Emerald (Emerald, Green, 6.23 x 6.23)
- 1ct Alexandrite (Round, Bluish Green, 7 x 7) vs. 1ct Emerald (Emerald, Green, 7 x 7)