1.9ct Amethyst (Oval, 10.74×7.16mm, Violet) vs 0.5ct Sapphire (Round, 4.75×4.75mm, Blue)
Quick summary: When looked from above (face-up position), 1.9ct Amethyst (10.74×7.16mm, oval cut) appears 3.6 times larger than 0.5ct Sapphire (4.75×4.75mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1.9ct Amethyst (oval cut) |
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0.5ct Sapphire (round cut) |
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violet |
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| 10.74×7.16 mm | 4.75×4.75 mm | |
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Actual sizes of
1.9ct Amethyst Oval (10.74×7.16mm, Violet)
and
0.5ct Sapphire Round (4.75×4.75mm, 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.
| 1.9 Ct Amethyst (Oval) | 0.5 Ct Sapphire (Round) | |
| 10.74×7.16 mm | vs | 4.75×4.75 mm |
| 63.06 mm² | 17.72 mm² |
| 1.9ct Amethyst Oval (10.74×7.16mm) | |
| 0.5ct Sapphire Round (4.75×4.75mm) | |
| Difference: 256% (45.34 mm²) |
1.9ct Amethyst Oval (10.74×7.16mm) has approx. 256% more face-up area than 0.5ct Sapphire Round (4.75×4.75mm). In other words, it's 3.56x larger.
Popular comparisons:
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 0.06ct Diamond (Round, White, 2.54 x 2.54)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 0.95ct Kunzite (Oval, Light Purple, 8.03 x 5.35)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 0.65ct Ruby (Oval, Red, 6.56 x 4.37)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 0.95ct Amethyst (Cushion, Violet, 6.31 x 6.31)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 2.5ct Topaz (Oval, Blue, 10.7 x 7.13)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 2.5ct Zircon (Round, Orange, 7.72 x 7.72)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 0.28ct Sapphire (Round, Blue, 3.91 x 3.91)
- 1.9ct Amethyst (Oval, Violet, 10.74 x 7.16) vs. 0.35ct Diamond (Round, White, 4.58 x 4.58)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.