1.25ct Sapphire (Emerald, 6.89×5.1mm, Blue) vs 3.25ct Diamond (Emerald, 9.9×7.33mm, White)
Quick summary: When looked from above (face-up position), 3.25ct Diamond (9.9×7.33mm, emerald cut) appears 2.1 times larger than 1.25ct Sapphire (6.89×5.1mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.25ct Sapphire (emerald cut) |
vs
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3.25ct Diamond (emerald cut) |
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blue |
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| 6.89×5.1 mm | 9.9×7.33 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
1.25ct Sapphire Emerald (6.89×5.1mm, Blue)
and
3.25ct Diamond Emerald (9.9×7.33mm, 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, Sapphire will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.
| 1.25 Ct Sapphire (Emerald) | 3.25 Ct Diamond (Emerald) | |
| 6.89×5.1 mm | vs | 9.9×7.33 mm |
| 32.68 mm² | 67.49 mm² |
| 1.25ct Sapphire Emerald (6.89×5.1mm) | |
| 3.25ct Diamond Emerald (9.9×7.33mm) | |
| Difference: 107% (34.81 mm²) |
3.25ct Diamond (Emerald, 9.9×7.33mm) has approx. 107% more face-up area than 1.25ct Sapphire (Emerald, 6.89×5.1mm). In other words, it's 2.07x larger.
Popular comparisons:
- 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1) vs. 1ct Diamond (Emerald, White, 6.68 x 4.95)
- 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1) vs. 2ct Aquamarine (Emerald, Light Blue, 9.17 x 6.79)
- 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1) vs. 1ct Aquamarine (Emerald, Light Blue, 7.28 x 5.39)
- 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1) vs. 4ct Diamond (Round, White, 10.32 x 10.32)
- 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Sapphire (Emerald, Blue, 7 x 5) vs. 1ct Sapphire (Oval, Blue, 7 x 5)
- 2ct Sapphire (Emerald, Blue, 8.05 x 5.96) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)