1ct Topaz (Oval, 7.89×5.26mm, Light Blue) vs 1ct Aquamarine (Oval, 8.63×5.75mm, Light Blue)
Quick summary: When looked from above (face-up position), 1ct Aquamarine (8.63×5.75mm, oval cut) appears 20% larger than 1ct Topaz (7.89×5.26mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 1ct Topaz (oval cut) |
vs
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1ct Aquamarine (oval cut) |
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light blue |
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| 7.89×5.26 mm | 8.63×5.75 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 Topaz Oval (7.89×5.26mm, Light Blue)
and
1ct Aquamarine Oval (8.63×5.75mm, 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, Topaz will face-up smaller than Aquamarine for a given
carat weight, because it has higher specific gravity
(3.53 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.
| 1 Ct Topaz (Oval) | 1 Ct Aquamarine (Oval) | |
| 7.89×5.26 mm | vs | 8.63×5.75 mm |
| 34.03 mm² | 40.69 mm² |
| 1ct Topaz Oval (7.89×5.26mm) | |
| 1ct Aquamarine Oval (8.63×5.75mm) | |
| Difference: 20% (6.66 mm²) |
1ct Aquamarine (Oval, 8.63×5.75mm) has approx. 20% more face-up area than 1ct Topaz (Oval, 7.89×5.26mm).
Popular comparisons:
- 1ct Topaz (Oval, Light Blue, 7.89 x 5.26) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 2.5ct Topaz (Oval, Blue, 10.7 x 7.13) vs. 6.25ct Diamond (Round, White, 11.97 x 11.97)
- 6ct Topaz (Oval, Blue, 14.33 x 9.55) vs. 6ct Diamond (Oval, White, 14.75 x 9.83)
- 3ct Topaz (Oval, Blue, 11 x 9) vs. 4ct Topaz (Oval, Blue, 12 x 10)
- 30ct Topaz (Oval, Blue, 24.5 x 16.33) vs. 10ct Aquamarine (Emerald, Light Bluish Green, 15.69 x 11.62)
- 25ct Topaz (Oval, Blue, 23.06 x 15.37) vs. 25ct Diamond (Oval, White, 23.73 x 15.82)
- 2ct Topaz (Oval, Blue, 9.93 x 6.62) vs. 0.41ct Topaz (Round, White, 4.63 x 4.63)
- 2ct Topaz (Oval, Blue, 9.93 x 6.62) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)