1ct Amethyst (Round, 7×7mm, Violet) vs 1ct Quartz (Pear, 7×7mm, Orangey Red)
Quick summary: When looked from above (face-up position), 1ct Amethyst (7×7mm, round cut) appears 8% larger than 1ct Quartz (7×7mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 1ct Amethyst (round cut) |
vs
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1ct Quartz (pear cut) |
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violet |
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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 Amethyst Round (7×7mm, Violet)
and
1ct Quartz Pear (7×7mm, Orangey Red)
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
Amethyst and Quartz have the same specific gravity so their face-up size
depends on the weight, shape and 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.
| 1 Ct Amethyst (Round) | 1 Ct Quartz (Pear) | |
| 7×7 mm | vs | 7×7 mm |
| 38.48 mm² | 35.77 mm² |
| 1ct Amethyst Round (7×7mm) | |
| 1ct Quartz Pear (7×7mm) | |
| Difference: 8% (2.71 mm²) |
1ct Amethyst (Round, 7×7mm) has approx. 8% more face-up area than 1ct Quartz (Pear, 7×7mm).
Popular comparisons:
- 1ct Amethyst (Round, Violet, 7 x 7) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Amethyst (Round, Violet, 7 x 7) vs. 1ct Amethyst (Round, Violet, 6.86 x 6.86)
- 1ct Amethyst (Round, Violet, 7 x 7) vs. 1ct Diamond (Round, White, 7 x 7)
- 1ct Amethyst (Round, Violet, 7 x 7) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Amethyst (Round, Violet, 6.86 x 6.86) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Amethyst (Round, Violet, 6.86 x 6.86) vs. 1ct Tanzanite (Emerald, Blue, 6.8 x 5.04)
- 2ct Amethyst (Round, Violet, 8.64 x 8.64) vs. 2ct Amethyst (Oval, Violet, 10.94 x 7.29)
- 1ct Amethyst (Round, Violet, 6.86 x 6.86) vs. 1ct Tanzanite (Round, Blue, 6.37 x 6.37)