2.5ct Aquamarine (Round, 9.25×9.25mm, Light Blue) vs 2.31ct Tanzanite (Round, 8.43×8.43mm, Blue)
Quick summary: When looked from above (face-up position), 2.5ct Aquamarine (9.25×9.25mm, round cut) appears 20% larger than 2.31ct Tanzanite (8.43×8.43mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Aquamarine (round cut) |
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2.31ct Tanzanite (round cut) |
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light blue |
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| 9.25×9.25 mm | 8.43×8.43 mm | |
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Actual sizes of
2.5ct Aquamarine Round (9.25×9.25mm, Light Blue)
and
2.31ct Tanzanite Round (8.43×8.43mm, 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, Tanzanite will face-up smaller than Aquamarine for a given
carat weight, because it has higher specific gravity
(3.3 vs. 2.7 - 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.
| 2.5 Ct Aquamarine (Round) | 2.31 Ct Tanzanite (Round) | |
| 9.25×9.25 mm | vs | 8.43×8.43 mm |
| 67.2 mm² | 55.81 mm² |
| 2.5ct Aquamarine Round (9.25×9.25mm) | |
| 2.31ct Tanzanite Round (8.43×8.43mm) | |
| Difference: 20% (11.39 mm²) |
2.5ct Aquamarine Round (9.25×9.25mm) has approx. 20% more face-up area than 2.31ct Tanzanite Round (8.43×8.43mm).
Popular comparisons:
- 2.5ct Aquamarine (Round, Light Blue, 9.25 x 9.25) vs. 2.5ct Diamond (Round, White, 8.82 x 8.82)
- 2.5ct Aquamarine (Round, Light Blue, 9.25 x 9.25) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2.5ct Aquamarine (Round, Light Blue, 9.25 x 9.25) vs. 2.69ct Diamond (Round, White, 9.04 x 9.04)
- 2.5ct Aquamarine (Round, Light Blue, 9.25 x 9.25) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 2.5ct Aquamarine (Round, Light Blue, 9.25 x 9.25) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2.5ct Aquamarine (Round, Light Blue, 9.25 x 9.25) vs. 1.25ct Morganite (Round, Light Purple, 7.34 x 7.34)
- 2ct Aquamarine (Round, Blue, 8.59 x 8.59) vs. 2ct Aquamarine (Emerald, Light Blue, 9.17 x 6.79)
- 1ct Aquamarine (Round, Light Blue, 6.82 x 6.82) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.