1ct Alexandrite (Marquise, 10×5mm, Bluish Green) vs 0.7ct Diamond (Round, 5.77×5.77mm, White)
Quick summary: When looked from above (face-up position), 1ct Alexandrite (10×5mm, marquise cut) appears 36% larger than 0.7ct Diamond (5.77×5.77mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1ct Alexandrite (marquise cut) |
vs
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0.7ct Diamond (round cut) |
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bluish green |
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| 10×5 mm | 5.77×5.77 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
1ct Alexandrite Marquise (10×5mm, Bluish Green)
and
0.7ct Diamond Round (5.77×5.77mm, 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.
| 1 Ct Alexandrite (Marquise) | 0.7 Ct Diamond (Round) | |
| 10×5 mm | vs | 5.77×5.77 mm |
| 35.5 mm² | 26.15 mm² |
| 1ct Alexandrite Marquise (10×5mm) | |
| 0.7ct Diamond Round (5.77×5.77mm) | |
| Difference: 36% (9.35 mm²) |
1ct Alexandrite (Marquise, 10×5mm) has approx. 36% more face-up area than 0.7ct Diamond (Round, 5.77×5.77mm).
Popular comparisons:
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Alexandrite (Oval, Bluish Green, 8 x 6)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Diamond (Marquise, White, 10.38 x 5.19)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Sapphire (Emerald, Blue, 6.39 x 4.73)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Aquamarine (Cushion, Light Blue, 6.37 x 6.37)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Alexandrite (Round, Bluish Green, 6 x 6)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)