3.72ct Amethyst (Princess, 9.55×9.55mm, Violet) vs 3ct Diamond (Princess, 7.95×7.95mm, White)
Quick summary: When looked from above (face-up position), 3.72ct Amethyst (9.55×9.55mm, princess cut) appears 44% larger than 3ct Diamond (7.95×7.95mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 3.72ct Amethyst (princess cut) |
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3ct Diamond (princess cut) |
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violet |
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| 9.55×9.55 mm | 7.95×7.95 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
3.72ct Amethyst Princess (9.55×9.55mm, Violet)
and
3ct Diamond Princess (7.95×7.95mm, White)
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, Diamond will face-up smaller than Amethyst for a given
carat weight, because it has higher specific gravity
(3.52 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.
| 3.72 Ct Amethyst (Princess) | 3 Ct Diamond (Princess) | |
| 9.55×9.55 mm | vs | 7.95×7.95 mm |
| 91.2 mm² | 63.2 mm² |
| 3.72ct Amethyst Princess (9.55×9.55mm) | |
| 3ct Diamond Princess (7.95×7.95mm) | |
| Difference: 44% (28 mm²) |
3.72ct Amethyst (Princess, 9.55×9.55mm) has approx. 44% more face-up area than 3ct Diamond (Princess, 7.95×7.95mm).
Popular comparisons:
- 3.72ct Amethyst (Princess, Violet, 9.55 x 9.55) vs. 3.72ct Diamond (Princess, White, 8.54 x 8.54)
- 3.72ct Amethyst (Princess, Violet, 9.55 x 9.55) vs. 1ct Diamond (Princess, White, 5.51 x 5.51)
- 1ct Amethyst (Princess, Violet, 6.17 x 6.17) vs. 1ct Diamond (Princess, White, 5.51 x 5.51)
- 2ct Amethyst (Princess, Violet, 7.77 x 7.77) vs. 2ct Amethyst (Oval, Violet, 10.94 x 7.29)
- 1ct Amethyst (Princess, Dark Purple, 6.17 x 6.17) vs. 1ct Tanzanite (Princess, Dark Blue, 5.73 x 5.73)
- 1ct Amethyst (Princess, Dark Violet, 6.17 x 6.17) vs. 1ct Tanzanite (Princess, Dark Blue, 5.73 x 5.73)
- 5ct Amethyst (Princess, Dark Violet, 10.54 x 10.54) vs. 5ct Sapphire (Emerald, Blue, 10.92 x 8.09)
- 10ct Amethyst (Princess, Violet, 13.28 x 13.28) vs. 10ct Amethyst (Oval, Dark Violet, 18.69 x 12.46)