0.2ct Alexandrite (Round, 3.59×3.59mm, Bluish Green) vs 0.2ct Diamond (Emerald, 3.9×2.89mm, White)
Quick summary: When looked from above (face-up position), 0.2ct Diamond (3.9×2.89mm, emerald cut) appears 4% larger than 0.2ct Alexandrite (3.59×3.59mm, round cut). See below how they compare side-by-side on a ring and finger.
| 0.2ct Alexandrite (round cut) |
vs
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0.2ct Diamond (emerald cut) |
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bluish green |
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| 3.59×3.59 mm | 3.9×2.89 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 Alexandrite Round (3.59×3.59mm, Bluish Green)
and
0.2ct Diamond Emerald (3.9×2.89mm, White)
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, Alexandrite will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.52 - this means it's "heavier" compared to Diamond 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 Alexandrite (Round) | 0.2 Ct Diamond (Emerald) | |
| 3.59×3.59 mm | vs | 3.9×2.89 mm |
| 10.12 mm² | 10.48 mm² |
| 0.2ct Alexandrite Round (3.59×3.59mm) | |
| 0.2ct Diamond Emerald (3.9×2.89mm) | |
| Difference: 4% (0.36 mm²) |
0.2ct Diamond (Emerald, 3.9×2.89mm) has approx. 4% more face-up area than 0.2ct Alexandrite (Round, 3.59×3.59mm).
Popular comparisons:
- 0.2ct Alexandrite (Round, Bluish Green, 3.59 x 3.59) vs. 0.1ct Emerald (Emerald, Green, 3.38 x 2.5)
- 0.2ct Alexandrite (Round, Bluish Green, 3.59 x 3.59) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.2ct Alexandrite (Round, Bluish Green, 3.59 x 3.59) vs. 0.68ct Diamond (Round, White, 5.72 x 5.72)
- 0.2ct Alexandrite (Round, Bluish Green, 3.59 x 3.59) vs. 0.2ct Diamond (Emerald, Bluish Green, 3.9 x 2.89)
- 0.2ct Alexandrite (Round, Bluish Green, 3.59 x 3.59) vs. 2ct Alexandrite (Emerald, Bluish Green, 8.26 x 6.12)
- 0.2ct Alexandrite (Round, Bluish Green, 3.59 x 3.59) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)
- 1ct Alexandrite (Round, Bluish Green, 6.14 x 6.14) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Alexandrite (Round, Bluish Green, 6.14 x 6.14) vs. 1ct Emerald (Emerald, Yellowish Green, 7.28 x 5.39)