19ct Benitoite (Oval, 21.09×14.06mm, Blue) vs 19ct Alexandrite (Oval, 20.94×13.96mm, Bluish Green)
Quick summary: When looked from above (face-up position), 19ct Benitoite (21.09×14.06mm, oval cut) appears 1% larger than 19ct Alexandrite (20.94×13.96mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 19ct Benitoite (oval cut) |
vs
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19ct Alexandrite (oval cut) |
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blue |
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| 21.09×14.06 mm | 20.94×13.96 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
19ct Benitoite Oval (21.09×14.06mm, Blue)
and
19ct Alexandrite Oval (20.94×13.96mm, 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 slightly smaller than Benitoite for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.65 - this means it's "slightly heavier" compared to Benitoite 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.
| 19 Ct Benitoite (Oval) | 19 Ct Alexandrite (Oval) | |
| 21.09×14.06 mm | vs | 20.94×13.96 mm |
| 243.15 mm² | 239.7 mm² |
| 19ct Benitoite Oval (21.09×14.06mm) | |
| 19ct Alexandrite Oval (20.94×13.96mm) | |
| Difference: 1% (3.45 mm²) |
19ct Benitoite (Oval, 21.09×14.06mm) has approx. 1% more face-up area than 19ct Alexandrite (Oval, 20.94×13.96mm).
Popular comparisons:
- 3ct Benitoite (Oval, Blue, 11.25 x 7.5) vs. 1ct Sapphire (Oval, Blue, 7.56 x 5.04)
- 2.8ct Benitoite (Oval, Blue, 11 x 7.33) vs. 2ct Sapphire (Oval, Blue, 9.53 x 6.35)
- 3.2ct Benitoite (Oval, Blue, 11.49 x 7.66) vs. 3ct Sapphire (Oval, Blue, 10.91 x 7.27)
- 3ct Benitoite (Oval, Blue, 11.25 x 7.5) vs. 1.5ct Diamond (Oval, White, 9.29 x 6.19)
- 1.09ct Benitoite (Oval, Blue, 8 x 4.5) vs. 0.75ct Diamond (Round, White, 5.91 x 5.91)
- 1ct Benitoite (Oval, Blue, 7.8 x 5.2) vs. 1ct Sapphire (Oval, Blue, 7.56 x 5.04)
- 0.56ct Benitoite (Oval, Dark Blue, 6.44 x 4.29) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2ct Benitoite (Oval, Blue, 9.83 x 6.55) vs. 2ct Sapphire (Oval, Blue, 9.53 x 6.35)
- 4ct Benitoite (Oval, Blue, 12 x 8) vs. 3ct Diamond (Oval, White, 11 x 7.5)