40ct Amethyst (Pear, 29×19.63mm, Violet) vs 40ct Diamond (Pear, 29×19mm, Black)
Quick summary: When looked from above (face-up position), 40ct Amethyst (29×19.63mm, pear cut) appears 3% larger than 40ct Diamond (29×19mm, pear cut). See below how they compare side-by-side on a ring and finger.
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40ct Diamond (pear cut) |
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| 29×19.63 mm | 29×19 mm | |
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Actual sizes of
40ct Amethyst Pear (29×19.63mm, Violet)
and
40ct Diamond Pear (29×19mm, Black)
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.
| 40 Ct Amethyst (Pear) | 40 Ct Diamond (Pear) | |
| 29×19.63 mm | vs | 29×19 mm |
| 415.57 mm² | 402.23 mm² |
| 40ct Amethyst Pear (29×19.63mm) | |
| 40ct Diamond Pear (29×19mm) | |
| Difference: 3% (13.34 mm²) |
40ct Amethyst Pear (29×19.63mm) has approx. 3% more face-up area than 40ct Diamond Pear (29×19mm).
Popular comparisons:
- 40ct Amethyst (Pear, Violet, 29 x 19.63) vs. 40ct Diopside (Pear, Black, 29 x 19)
- 40ct Amethyst (Pear, Violet, 29 x 19.63) vs. 40ct Topaz (Pear, Dark Green, 29 x 19)
- 40ct Amethyst (Pear, Violet, 29 x 19.63) vs. 40ct Sapphire (Pear, Gray, 30 x 20)
- 40ct Amethyst (Pear, Violet, 29 x 19.63) vs. 40ct Sapphire (Pear, Black, 30 x 20)
- 0.65ct Amethyst (Pear, Violet, 8 x 6) vs. 1.5ct Amethyst (Emerald, Violet, 8 x 6)
- 1ct Amethyst (Pear, Violet, 9.53 x 5.74) vs. 1ct Diamond (Pear, White, 9.05 x 5.45)
- 30ct Amethyst (Pear, Violet, 29.6 x 17.83) vs. 1.5ct Amethyst (Emerald, Violet, 8 x 6)
- 1.4ct Amethyst (Pear, Light Purple, 10 x 7) vs. 1.5ct Diamond (Pear, White, 10 x 6.8)
Enter your screen size (diagonal)
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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.