3ct Sapphire (Cushion, 8.06×8.06mm, Blue) vs 2ct Diamond (Cushion, 7.34×7.34mm, White)
Quick summary: When looked from above (face-up position), 3ct Sapphire (8.06×8.06mm, cushion cut) appears 21% larger than 2ct Diamond (7.34×7.34mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 3ct Sapphire (cushion cut) |
vs
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2ct Diamond (cushion cut) |
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blue |
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| 8.06×8.06 mm | 7.34×7.34 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
3ct Sapphire Cushion (8.06×8.06mm, Blue)
and
2ct Diamond Cushion (7.34×7.34mm, 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.
| 3 Ct Sapphire (Cushion) | 2 Ct Diamond (Cushion) | |
| 8.06×8.06 mm | vs | 7.34×7.34 mm |
| 58.47 mm² | 48.49 mm² |
| 3ct Sapphire Cushion (8.06×8.06mm) | |
| 2ct Diamond Cushion (7.34×7.34mm) | |
| Difference: 21% (9.98 mm²) |
3ct Sapphire (Cushion, 8.06×8.06mm) has approx. 21% more face-up area than 2ct Diamond (Cushion, 7.34×7.34mm).
Popular comparisons:
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 3ct Diamond (Cushion, White, 8.4 x 8.4)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 2ct Sapphire (Cushion, Blue, 7.04 x 7.04)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 3ct Aquamarine (Round, Light Blue, 9.83 x 9.83)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 2ct Emerald (Cushion, Green, 8.03 x 8.03)
- 3ct Sapphire (Cushion, Blue, 8.06 x 8.06) vs. 2ct Diamond (Round, White, 8.19 x 8.19)