4ct Fluorite (Marquise, 16.66×8.33mm, Bluish Green) vs 4ct Aquamarine (Marquise, 17.56×8.78mm, Light Blue)
Quick summary: When looked from above (face-up position), 4ct Aquamarine (17.56×8.78mm, marquise cut) appears 11% larger than 4ct Fluorite (16.66×8.33mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 4ct Fluorite (marquise cut) |
vs
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4ct Aquamarine (marquise cut) |
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bluish green |
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| 16.66×8.33 mm | 17.56×8.78 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
4ct Fluorite Marquise (16.66×8.33mm, Bluish Green)
and
4ct Aquamarine Marquise (17.56×8.78mm, Light Blue)
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, Fluorite will face-up smaller than Aquamarine for a given
carat weight, because it has higher specific gravity
(3.18 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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.
| 4 Ct Fluorite (Marquise) | 4 Ct Aquamarine (Marquise) | |
| 16.66×8.33 mm | vs | 17.56×8.78 mm |
| 98.53 mm² | 109.47 mm² |
| 4ct Fluorite Marquise (16.66×8.33mm) | |
| 4ct Aquamarine Marquise (17.56×8.78mm) | |
| Difference: 11% (10.94 mm²) |
4ct Aquamarine (Marquise, 17.56×8.78mm) has approx. 11% more face-up area than 4ct Fluorite (Marquise, 16.66×8.33mm).
Popular comparisons:
- 13ct Fluorite (Marquise, Bluish Green, 25.06 x 12.53) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 10ct Fluorite (Marquise, Dark Green, 22.96 x 11.48) vs. 10ct Emerald (Marquise, Green, 24.24 x 12.12)
- 2.76ct Fluorite (Marquise, Bluish Green, 14.94 x 7.47) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.7ct Fluorite (Marquise, Bluish Green, 9.46 x 4.73) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Fluorite (Marquise, Bluish Green, 18.22 x 9.11) vs. 8ct Diamond (Princess, Light Gray, 11.02 x 11.02)
- 5ct Fluorite (Marquise, Bluish Green, 18.22 x 9.11) vs. 5.5ct Diamond (Marquise, Light Gray, 18.34 x 9.17)
- 5ct Fluorite (Marquise, Bluish Green, 18.22 x 9.11) vs. 5.4ct Diamond (Marquise, Light Gray, 18.22 x 9.11)
- 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)