1ct Sapphire (Emerald, 6.39×4.73mm, Blue) vs 1ct Alexandrite (Emerald, 6.55×4.85mm, Bluish Green)
Quick summary: When looked from above (face-up position), 1ct Alexandrite (6.55×4.85mm, emerald cut) appears 5% larger than 1ct Sapphire (6.39×4.73mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1ct Sapphire (emerald cut) |
vs
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1ct Alexandrite (emerald cut) |
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blue |
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| 6.39×4.73 mm | 6.55×4.85 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 Sapphire Emerald (6.39×4.73mm, Blue)
and
1ct Alexandrite Emerald (6.55×4.85mm, 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, Sapphire will face-up smaller than Alexandrite for a given
carat weight, because it has higher specific gravity
(4 vs. 3.73 - this means it's "heavier" compared to Alexandrite 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 Sapphire (Emerald) | 1 Ct Alexandrite (Emerald) | |
| 6.39×4.73 mm | vs | 6.55×4.85 mm |
| 28.11 mm² | 29.54 mm² |
| 1ct Sapphire Emerald (6.39×4.73mm) | |
| 1ct Alexandrite Emerald (6.55×4.85mm) | |
| Difference: 5% (1.43 mm²) |
1ct Alexandrite (Emerald, 6.55×4.85mm) has approx. 5% more face-up area than 1ct Sapphire (Emerald, 6.39×4.73mm).
Popular comparisons:
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1ct Diamond (Emerald, White, 6.68 x 4.95)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 2ct Sapphire (Emerald, Blue, 8.05 x 5.96)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1.3ct Sapphire (Emerald, Blue, 6.97 x 5.16)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1ct Aquamarine (Emerald, Light Blue, 7.28 x 5.39)