1.92ct Sapphire (Cabochon, 8.51×5.67mm, Blue) vs 1.9ct Amethyst (Oval, 10.74×7.16mm, Violet)
Quick summary: When looked from above (face-up position), 1.9ct Amethyst (10.74×7.16mm, oval cut) appears 59% larger than 1.92ct Sapphire (8.51×5.67mm, cabochon cut). See below how they compare side-by-side on a ring and finger.
| 1.92ct Sapphire (cabochon cut) |
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1.9ct Amethyst (oval cut) |
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blue |
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| 8.51×5.67 mm | 10.74×7.16 mm | |
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Actual sizes of
1.92ct Sapphire Cabochon (8.51×5.67mm, Blue)
and
1.9ct Amethyst Oval (10.74×7.16mm, Violet)
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.
| 1.92 Ct Sapphire (Cabochon) | 1.9 Ct Amethyst (Oval) | |
| 8.51×5.67 mm | vs | 10.74×7.16 mm |
| 39.57 mm² | 63.06 mm² |
| 1.92ct Sapphire Cabochon (8.51×5.67mm) | |
| 1.9ct Amethyst Oval (10.74×7.16mm) | |
| Difference: 59% (23.49 mm²) |
1.9ct Amethyst Oval (10.74×7.16mm) has approx. 59% more face-up area than 1.92ct Sapphire Cabochon (8.51×5.67mm).
Popular comparisons:
- 1.92ct Sapphire (Cabochon, Blue, 8.51 x 5.67) vs. 0.74ct Sapphire (Cabochon, Blue, 6.2 x 4.13)
- 1.92ct Sapphire (Cabochon, Blue, 8.51 x 5.67) vs. 0.5ct Sapphire (Round, Blue, 4.75 x 4.75)
- 1.92ct Sapphire (Cabochon, Blue, 8.51 x 5.67) vs. 0.06ct Diamond (Round, White, 2.54 x 2.54)
- 1.92ct Sapphire (Cabochon, Blue, 8.51 x 5.67) vs. 1.75ct Zircon (Round, Orange, 6.85 x 6.85)
- 2ct Sapphire (Cabochon, Dark Blue, 8 x 6) vs. 2.27ct Sapphire (Cabochon, Light Blue, 8 x 6.1)
- 2ct Sapphire (Cabochon, Blue, 8.63 x 5.75) vs. 2ct Diamond (Cabochon, White, 9 x 6)
- 2ct Sapphire (Cabochon, Blue, 8.63 x 5.75) vs. 2ct Ruby (Oval, Red, 9.53 x 6.35)
- 5ct Sapphire (Cabochon, Dark Blue, 10 x 10) vs. 8ct Ruby (Cabochon, Red, 13.68 x 9.12)
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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.