20ct Fluorite (Oval, 22.47×14.98mm, Bluish Green) vs 20ct Topaz (Oval, 21.69×14.46mm, Blue)
Quick summary: When looked from above (face-up position), 20ct Fluorite (22.47×14.98mm, oval cut) appears 7% larger than 20ct Topaz (21.69×14.46mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 20ct Fluorite (oval cut) |
vs
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20ct Topaz (oval cut) |
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bluish green |
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| 22.47×14.98 mm | 21.69×14.46 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
20ct Fluorite Oval (22.47×14.98mm, Bluish Green)
and
20ct Topaz Oval (21.69×14.46mm, 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, Topaz will face-up smaller than Fluorite for a given
carat weight, because it has higher specific gravity
(3.53 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.
| 20 Ct Fluorite (Oval) | 20 Ct Topaz (Oval) | |
| 22.47×14.98 mm | vs | 21.69×14.46 mm |
| 276.01 mm² | 257.18 mm² |
| 20ct Fluorite Oval (22.47×14.98mm) | |
| 20ct Topaz Oval (21.69×14.46mm) | |
| Difference: 7% (18.83 mm²) |
20ct Fluorite (Oval, 22.47×14.98mm) has approx. 7% more face-up area than 20ct Topaz (Oval, 21.69×14.46mm).
Popular comparisons:
- 5ct Fluorite (Oval, Bluish Green, 13.97 x 9.31) vs. 3.7ct Sapphire (Oval, Blue, 11.7 x 7.8)
- 1ct Fluorite (Oval, Bluish Green, 9 x 4) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 12ct Fluorite (Oval, Bluish Green, 18.69 x 12.46) vs. 4ct Fluorite (Oval, Bluish Green, 12.96 x 8.64)
- 2.36ct Fluorite (Oval, Bluish Green, 10.88 x 7.25) vs. 4ct Sapphire (Oval, Blue, 12 x 8)
- 2ct Fluorite (Oval, Violet, 10.29 x 6.86) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 12ct Fluorite (Oval, Bluish Green, 18.69 x 12.46) vs. 3ct Fluorite (Oval, Bluish Green, 11.78 x 7.85)
- 5ct Fluorite (Oval, Bluish Green, 13.97 x 9.31) vs. 3.5ct Sapphire (Oval, Blue, 11.49 x 7.66)
- 2ct Fluorite (Oval, Bluish Green, 10.29 x 6.86) vs. 2ct Sapphire (Round, Blue, 7.53 x 7.53)
- 2ct Fluorite (Oval, Bluish Green, 10.29 x 6.86) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)