3ct Amethyst (Cushion, 9.25×9.25mm, Violet) vs 3ct Sapphire (Cushion, 8.06×8.06mm, Blue)
Quick summary: When looked from above (face-up position), 3ct Amethyst (9.25×9.25mm, cushion cut) appears 32% larger than 3ct Sapphire (8.06×8.06mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 3ct Amethyst (cushion cut) |
vs
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3ct Sapphire (cushion cut) |
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violet |
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| 9.25×9.25 mm | 8.06×8.06 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
3ct Amethyst Cushion (9.25×9.25mm, Violet)
and
3ct Sapphire Cushion (8.06×8.06mm, 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, Sapphire 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.
| 3 Ct Amethyst (Cushion) | 3 Ct Sapphire (Cushion) | |
| 9.25×9.25 mm | vs | 8.06×8.06 mm |
| 77.01 mm² | 58.47 mm² |
| 3ct Amethyst Cushion (9.25×9.25mm) | |
| 3ct Sapphire Cushion (8.06×8.06mm) | |
| Difference: 32% (18.54 mm²) |
3ct Amethyst (Cushion, 9.25×9.25mm) has approx. 32% more face-up area than 3ct Sapphire (Cushion, 8.06×8.06mm).
Popular comparisons:
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 3ct Diamond (Cushion, White, 8.4 x 8.4)
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 1ct Tanzanite (Round, Blue, 6 x 6)
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 2ct Diamond (Cushion, White, 7.34 x 7.34)
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 2ct Diamond (Cushion, White, 8 x 8)
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 3ct Spinel (Cushion, Blue, 8.35 x 8.35)
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 3ct Spinel (Cushion, Dark Violet, 8.35 x 8.35)
- 3ct Amethyst (Cushion, Violet, 9.25 x 9.25) vs. 3ct Zircon (Cushion, Orange, 7.67 x 7.67)
- 2ct Amethyst (Cushion, Violet, 8 x 8) vs. 2ct Diamond (Cushion, White, 7.34 x 7.34)