1ct Fluorite (Pear, 9.18×5.53mm, Bluish Green) vs 1ct Alexandrite (Pear, 8.7×5.24mm, Bluish Green)
Quick summary: When looked from above (face-up position), 1ct Fluorite (9.18×5.53mm, pear cut) appears 11% larger than 1ct Alexandrite (8.7×5.24mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 1ct Fluorite (pear cut) |
vs
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1ct Alexandrite (pear cut) |
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bluish green |
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| 9.18×5.53 mm | 8.7×5.24 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 Fluorite Pear (9.18×5.53mm, Bluish Green)
and
1ct Alexandrite Pear (8.7×5.24mm, 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 Fluorite for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.18 - this means it's "heavier" compared to Fluorite 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 Fluorite (Pear) | 1 Ct Alexandrite (Pear) | |
| 9.18×5.53 mm | vs | 8.7×5.24 mm |
| 37.06 mm² | 33.28 mm² |
| 1ct Fluorite Pear (9.18×5.53mm) | |
| 1ct Alexandrite Pear (8.7×5.24mm) | |
| Difference: 11% (3.78 mm²) |
1ct Fluorite (Pear, 9.18×5.53mm) has approx. 11% more face-up area than 1ct Alexandrite (Pear, 8.7×5.24mm).
Popular comparisons:
- 0.5ct Fluorite (Pear, Bluish Green, 7.12 x 4.29) vs. 0.5ct Ruby (Cushion, Red, 4.44 x 4.44)
- 2ct Fluorite (Pear, Bluish Green, 11.29 x 6.8) vs. 2ct Citrine (Pear, Light Orange, 12 x 7.23)
- 9.3ct Fluorite (Pear, Bluish Green, 18.86 x 11.36) vs. 0.81ct Sapphire (Pear, Blue, 7.74 x 4.66)
- 30ct Fluorite (Pear, Bluish Green, 27.85 x 16.78) vs. 30ct Topaz (Pear, Blue, 26.91 x 16.21)
- 2.77ct Fluorite (Pear, Bluish Green, 13.6 x 8.7) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)