3.5ct Sapphire (Cushion, 8.49×8.49mm, Blue) vs 1ct Diamond (Emerald, 6.68×4.95mm, White)
Quick summary: When looked from above (face-up position), 3.5ct Sapphire (8.49×8.49mm, cushion cut) appears 2.1 times larger than 1ct Diamond (6.68×4.95mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 3.5ct Sapphire (cushion cut) |
vs
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1ct Diamond (emerald cut) |
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blue |
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| 8.49×8.49 mm | 6.68×4.95 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
3.5ct Sapphire Cushion (8.49×8.49mm, Blue)
and
1ct Diamond Emerald (6.68×4.95mm, 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.
| 3.5 Ct Sapphire (Cushion) | 1 Ct Diamond (Emerald) | |
| 8.49×8.49 mm | vs | 6.68×4.95 mm |
| 64.87 mm² | 30.75 mm² |
| 3.5ct Sapphire Cushion (8.49×8.49mm) | |
| 1ct Diamond Emerald (6.68×4.95mm) | |
| Difference: 111% (34.12 mm²) |
3.5ct Sapphire (Cushion, 8.49×8.49mm) has approx. 111% more face-up area than 1ct Diamond (Emerald, 6.68×4.95mm). In other words, it's 2.11x larger.
Popular comparisons:
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 3.5ct Diamond (Emerald, White, 10.14 x 7.51)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 3ct Sapphire (Cushion, Blue, 8.06 x 8.06)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 2.5ct Diamond (Oval, White, 11.01 x 7.34)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 2ct Diamond (Cushion, White, 7.34 x 7.34)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 1.6ct Tanzanite (Oval, Blue, 9.44 x 6.29)
- 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49) vs. 4.26ct Sapphire (Cushion, Blue, 8 x 10)