28ct Aquamarine (Oval, 26.48×17.65mm, Light Blue) vs 28ct Diamond (Oval, 24.65×16.43mm, White)
Quick summary: When looked from above (face-up position), 28ct Aquamarine (26.48×17.65mm, oval cut) appears 15% larger than 28ct Diamond (24.65×16.43mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 28ct Aquamarine (oval cut) |
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28ct Diamond (oval cut) |
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light blue |
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| 26.48×17.65 mm | 24.65×16.43 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
28ct Aquamarine Oval (26.48×17.65mm, Light Blue)
and
28ct Diamond Oval (24.65×16.43mm, White)
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, Diamond will face-up smaller than Aquamarine for a given
carat weight, because it has higher specific gravity
(3.52 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.
| 28 Ct Aquamarine (Oval) | 28 Ct Diamond (Oval) | |
| 26.48×17.65 mm | vs | 24.65×16.43 mm |
| 383.25 mm² | 332.1 mm² |
| 28ct Aquamarine Oval (26.48×17.65mm) | |
| 28ct Diamond Oval (24.65×16.43mm) | |
| Difference: 15% (51.15 mm²) |
28ct Aquamarine (Oval, 26.48×17.65mm) has approx. 15% more face-up area than 28ct Diamond (Oval, 24.65×16.43mm).
Popular comparisons:
- 1ct Aquamarine (Oval, Light Blue, 8.63 x 5.75) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Sapphire (Oval, Light Blue, 7.56 x 5.04)
- 2ct Aquamarine (Oval, Light Blue, 10.86 x 7.24) vs. 2.4ct Diamond (Oval, White, 10.86 x 7.24)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Aquamarine (Oval, Light Blue, 9 x 7)
- 1ct Aquamarine (Oval, Light Blue, 8.63 x 5.75) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 3ct Aquamarine (Oval, Light Blue, 12.44 x 8.29) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 2ct Aquamarine (Oval, Light Blue, 10.86 x 7.24) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.5ct Aquamarine (Oval, Light Blue, 9.87 x 6.58) vs. 1ct Diamond (Round, White, 6.5 x 6.5)