0.9ct Diamond (Princess, 5.32×5.32mm, White) vs 1ct Alexandrite (Oval, 6.44×5.41mm, Bluish Green)
Quick summary: When looked from above (face-up position), 1ct Alexandrite (6.44×5.41mm, oval cut) appears 1% larger than 0.9ct Diamond (5.32×5.32mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 0.9ct Diamond (princess cut) |
vs
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1ct Alexandrite (oval cut) |
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white |
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| 5.32×5.32 mm | 6.44×5.41 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
0.9ct Diamond Princess (5.32×5.32mm, White)
and
1ct Alexandrite Oval (6.44×5.41mm, Bluish Green)
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.
| 0.9 Ct Diamond (Princess) | 1 Ct Alexandrite (Oval) | |
| 5.32×5.32 mm | vs | 6.44×5.41 mm |
| 28.3 mm² | 28.57 mm² |
| 0.9ct Diamond Princess (5.32×5.32mm) | |
| 1ct Alexandrite Oval (6.44×5.41mm) | |
| Difference: 1% (0.27 mm²) |
1ct Alexandrite (Oval, 6.44×5.41mm) has approx. 1% more face-up area than 0.9ct Diamond (Princess, 5.32×5.32mm).
Popular comparisons:
- 0.9ct Diamond (Princess, White, 5.32 x 5.32) vs. 1ct Diamond (Princess, White, 5.51 x 5.51)
- 0.9ct Diamond (Princess, White, 5.32 x 5.32) vs. 1.5ct Diamond (Princess, White, 6.31 x 6.31)
- 0.9ct Diamond (Princess, White, 5.32 x 5.32) vs. 0.52ct Diamond (Princess, White, 4.43 x 4.43)
- 0.9ct Diamond (Princess, White, 5.32 x 5.32) vs. 1ct Diamond (Emerald, White, 6.68 x 4.95)
- 0.9ct Diamond (Princess, White, 5.32 x 5.32) vs. 0.1ct Diamond (Princess, White, 2.56 x 2.56)
- 0.9ct Diamond (Princess, White, 5.32 x 5.32) vs. 0.25ct Diamond (Princess, White, 3.47 x 3.47)
- 0.2ct Diamond (Princess, White, 3.22 x 3.22) vs. 0.3ct Diamond (Princess, White, 3.69 x 3.69)
- 0.7ct Diamond (Princess, White, 4.83 x 4.82) vs. 0.7ct Diamond (Princess, White, 4.82 x 4.77)