15ct Aquamarine (Emerald, 17.91×13.27mm, Light Blue) vs 15ct Diamond (Emerald, 16.48×12.21mm, White)
Quick summary: When looked from above (face-up position), 15ct Aquamarine (17.91×13.27mm, emerald cut) appears 18% larger than 15ct Diamond (16.48×12.21mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 15ct Aquamarine (emerald cut) |
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15ct Diamond (emerald cut) |
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light blue |
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| 17.91×13.27 mm | 16.48×12.21 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
15ct Aquamarine Emerald (17.91×13.27mm, Light Blue)
and
15ct Diamond Emerald (16.48×12.21mm, 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.
| 15 Ct Aquamarine (Emerald) | 15 Ct Diamond (Emerald) | |
| 17.91×13.27 mm | vs | 16.48×12.21 mm |
| 221.03 mm² | 187.14 mm² |
| 15ct Aquamarine Emerald (17.91×13.27mm) | |
| 15ct Diamond Emerald (16.48×12.21mm) | |
| Difference: 18% (33.89 mm²) |
15ct Aquamarine (Emerald, 17.91×13.27mm) has approx. 18% more face-up area than 15ct Diamond (Emerald, 16.48×12.21mm).
Popular comparisons:
- 7ct Aquamarine (Emerald, Light Blue, 13.92 x 10.31) vs. 7ct Sapphire (Emerald, Blue, 12.22 x 9.05)
- 1ct Aquamarine (Emerald, Light Blue, 7.28 x 5.39) vs. 1ct Diamond (Emerald, White, 6.68 x 4.95)
- 5ct Aquamarine (Emerald, Light Blue, 12.45 x 9.22) vs. 5ct Diamond (Emerald, White, 11.42 x 8.46)
- 2.7ct Aquamarine (Emerald, Light Bluish Green, 9 x 7) vs. 2.7ct Diamond (Round, White, 9.05 x 9.05)
- 1.5ct Aquamarine (Emerald, Light Blue, 8.33 x 6.17) vs. 2ct Aquamarine (Emerald, Light Blue, 9.17 x 6.79)
- 13.21ct Aquamarine (Emerald, Light Blue, 21 x 11.5) vs. 4.01ct Aquamarine (Oval, Light Blue, 12 x 9)
- 10ct Aquamarine (Emerald, Light Blue, 15.69 x 11.62) vs. 10ct Spinel (Emerald, Light Blue, 14.24 x 10.55)
- 8ct Aquamarine (Emerald, Light Blue, 14.55 x 10.78) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 7ct Aquamarine (Emerald, Light Blue, 13.92 x 10.31) vs. 7ct Diamond (Emerald, White, 12.78 x 9.47)