0.2ct Diamond (Marquise, 6.08×3.04mm, White) vs 0.4ct Amethyst (Emerald, 5.4×4mm, Violet)
Quick summary: When looked from above (face-up position), 0.4ct Amethyst (5.4×4mm, emerald cut) appears 53% larger than 0.2ct Diamond (6.08×3.04mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 0.2ct Diamond (marquise cut) |
vs
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0.4ct Amethyst (emerald cut) |
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white |
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| 6.08×3.04 mm | 5.4×4 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
0.2ct Diamond Marquise (6.08×3.04mm, White)
and
0.4ct Amethyst Emerald (5.4×4mm, 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, 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.
| 0.2 Ct Diamond (Marquise) | 0.4 Ct Amethyst (Emerald) | |
| 6.08×3.04 mm | vs | 5.4×4 mm |
| 13.12 mm² | 20.09 mm² |
| 0.2ct Diamond Marquise (6.08×3.04mm) | |
| 0.4ct Amethyst Emerald (5.4×4mm) | |
| Difference: 53% (6.97 mm²) |
0.4ct Amethyst (Emerald, 5.4×4mm) has approx. 53% more face-up area than 0.2ct Diamond (Marquise, 6.08×3.04mm).
Popular comparisons:
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.3ct Diamond (Marquise, White, 6.96 x 3.48)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.2ct Diamond (Oval, White, 4.74 x 3.16)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.2ct Diamond (Pear, White, 5.3 x 3.19)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.05ct Diamond (Marquise, White, 3.82 x 1.91)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.4ct Diamond (Marquise, White, 7.66 x 3.83)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.05ct Diamond (Pear, White, 3.34 x 2.01)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 0.2ct Ruby (Princess, Red, 3.14 x 3.14)