15ct Diaspore (Baguette, 18.05×12.03mm, Light Yellowish Green) vs 15ct Alexandrite (Baguette, 17.49×11.66mm, Bluish Green)
Quick summary: When looked from above (face-up position), 15ct Diaspore (18.05×12.03mm, baguette cut) appears 6% larger than 15ct Alexandrite (17.49×11.66mm, baguette cut). See below how they compare side-by-side on a ring and finger.
| 15ct Diaspore (baguette cut) |
vs
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15ct Alexandrite (baguette cut) |
|
light yellowish green |
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| 18.05×12.03 mm | 17.49×11.66 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
15ct Diaspore Baguette (18.05×12.03mm, Light Yellowish Green)
and
15ct Alexandrite Baguette (17.49×11.66mm, 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 Diaspore for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.4 - this means it's "heavier" compared to Diaspore 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.
| 15 Ct Diaspore (Baguette) | 15 Ct Alexandrite (Baguette) | |
| 18.05×12.03 mm | vs | 17.49×11.66 mm |
| 217.14 mm² | 203.93 mm² |
| 15ct Diaspore Baguette (18.05×12.03mm) | |
| 15ct Alexandrite Baguette (17.49×11.66mm) | |
| Difference: 6% (13.21 mm²) |
15ct Diaspore (Baguette, 18.05×12.03mm) has approx. 6% more face-up area than 15ct Alexandrite (Baguette, 17.49×11.66mm).
Popular comparisons:
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