1.25ct Diamond (Emerald, 7.2×5.33mm, White) vs 2.5ct Sapphire (Cushion, 7.59×7.59mm, Blue)
Quick summary: When looked from above (face-up position), 2.5ct Sapphire (7.59×7.59mm, cushion cut) appears 45% larger than 1.25ct Diamond (7.2×5.33mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.25ct Diamond (emerald cut) |
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2.5ct Sapphire (cushion cut) |
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white |
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| 7.2×5.33 mm | 7.59×7.59 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 Diamond Emerald (7.2×5.33mm, White)
and
2.5ct Sapphire Cushion (7.59×7.59mm, Blue)
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 Diamond (Emerald) | 2.5 Ct Sapphire (Cushion) | |
| 7.2×5.33 mm | vs | 7.59×7.59 mm |
| 35.69 mm² | 51.85 mm² |
| 1.25ct Diamond Emerald (7.2×5.33mm) | |
| 2.5ct Sapphire Cushion (7.59×7.59mm) | |
| Difference: 45% (16.16 mm²) |
2.5ct Sapphire (Cushion, 7.59×7.59mm) has approx. 45% more face-up area than 1.25ct Diamond (Emerald, 7.2×5.33mm).
Popular comparisons:
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 1.5ct Diamond (Emerald, White, 7.65 x 5.67)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 1.75ct Diamond (Emerald, White, 8 x 6)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 1.6ct Diamond (Emerald, White, 7.8 x 5.76)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 1.25ct Diamond (Oval, White, 8.75 x 5.83)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 2.5ct Diamond (Emerald, White, 9.07 x 6.72)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 1.4ct Diamond (Emerald, White, 7.48 x 5.54)
- 1.25ct Diamond (Emerald, White, 7.2 x 5.33) vs. 1.25ct Sapphire (Emerald, Blue, 6.89 x 5.1)