2ct Amethyst (Princess, 7.77×7.77mm, Violet) vs 2ct Ruby (Oval, 9.53×6.35mm, Light Red)
Quick summary: When looked from above (face-up position), 2ct Amethyst (7.77×7.77mm, princess cut) appears 22% larger than 2ct Ruby (9.53×6.35mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 2ct Amethyst (princess cut) |
vs
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2ct Ruby (oval cut) |
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violet |
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| 7.77×7.77 mm | 9.53×6.35 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
2ct Amethyst Princess (7.77×7.77mm, Violet)
and
2ct Ruby Oval (9.53×6.35mm, Light 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
All things being equal, Ruby will face-up smaller than Amethyst for a given
carat weight, because it has higher specific gravity
(4 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.
| 2 Ct Amethyst (Princess) | 2 Ct Ruby (Oval) | |
| 7.77×7.77 mm | vs | 9.53×6.35 mm |
| 60.37 mm² | 49.62 mm² |
| 2ct Amethyst Princess (7.77×7.77mm) | |
| 2ct Ruby Oval (9.53×6.35mm) | |
| Difference: 22% (10.75 mm²) |
2ct Amethyst (Princess, 7.77×7.77mm) has approx. 22% more face-up area than 2ct Ruby (Oval, 9.53×6.35mm).
Popular comparisons:
- 2ct Amethyst (Princess, Violet, 7.77 x 7.77) vs. 2ct Amethyst (Oval, Violet, 10.94 x 7.29)
- 2ct Amethyst (Princess, Violet, 7.77 x 7.77) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2ct Amethyst (Princess, Violet, 7.77 x 7.77) vs. 0.9ct Diamond (Princess, White, 5.32 x 5.32)
- 1ct Amethyst (Princess, Violet, 6.17 x 6.17) vs. 1ct Diamond (Princess, White, 5.51 x 5.51)
- 1ct Amethyst (Princess, Dark Purple, 6.17 x 6.17) vs. 1ct Tanzanite (Princess, Dark Blue, 5.73 x 5.73)
- 3.72ct Amethyst (Princess, Violet, 9.55 x 9.55) vs. 3.72ct Diamond (Princess, White, 8.54 x 8.54)
- 1ct Amethyst (Princess, Dark Violet, 6.17 x 6.17) vs. 1ct Tanzanite (Princess, Dark Blue, 5.73 x 5.73)
- 10ct Amethyst (Princess, Violet, 13.28 x 13.28) vs. 10ct Amethyst (Oval, Dark Violet, 18.69 x 12.46)