1ct Amethyst (Marquise, 11.32×5.66mm, Dark Violet) vs 1ct Tanzanite (Emerald, 6.8×5.04mm, Blue)
Quick summary: When looked from above (face-up position), 1ct Amethyst (11.32×5.66mm, marquise cut) appears 43% larger than 1ct Tanzanite (6.8×5.04mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1ct Amethyst (marquise cut) |
vs
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1ct Tanzanite (emerald cut) |
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dark violet |
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| 11.32×5.66 mm | 6.8×5.04 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 Amethyst Marquise (11.32×5.66mm, Dark Violet)
and
1ct Tanzanite Emerald (6.8×5.04mm, Blue)
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, Tanzanite will face-up smaller than Amethyst for a given
carat weight, because it has higher specific gravity
(3.35 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 Amethyst (Marquise) | 1 Ct Tanzanite (Emerald) | |
| 11.32×5.66 mm | vs | 6.8×5.04 mm |
| 45.49 mm² | 31.87 mm² |
| 1ct Amethyst Marquise (11.32×5.66mm) | |
| 1ct Tanzanite Emerald (6.8×5.04mm) | |
| Difference: 43% (13.62 mm²) |
1ct Amethyst (Marquise, 11.32×5.66mm) has approx. 43% more face-up area than 1ct Tanzanite (Emerald, 6.8×5.04mm).
Popular comparisons:
- 1ct Amethyst (Marquise, Violet, 11.32 x 5.66) vs. 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26)
- 1.7ct Amethyst (Marquise, Violet, 13.52 x 6.76) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 10.55ct Amethyst (Marquise, Violet, 24.84 x 12.42) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Amethyst (Marquise, Violet, 16.32 x 8.16) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Amethyst (Marquise, Violet, 11.32 x 5.66) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.5ct Amethyst (Marquise, Violet, 8.98 x 4.49) vs. 0.06ct Diamond (Baguette, White, 2.84 x 1.89)
- 1.31ct Amethyst (Marquise, Violet, 12.22 x 6.11) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2ct Amethyst (Marquise, Violet, 14.26 x 7.13) vs. 1ct Amethyst (Marquise, Violet, 11.32 x 5.66)