1ct Diamond (Cushion, 5.83×5.83mm, Yellow) vs 1ct Ruby (Cushion, 5.59×5.59mm, Red)
Quick summary: When looked from above (face-up position), 1ct Colored Diamond (5.83×5.83mm, cushion cut) appears 9% larger than 1ct Ruby (5.59×5.59mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 1ct Diamond (cushion cut) |
vs
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1ct Ruby (cushion cut) |
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yellow |
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| 5.83×5.83 mm | 5.59×5.59 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
1ct Diamond Cushion (5.83×5.83mm, Yellow)
and
1ct Ruby Cushion (5.59×5.59mm, Red)
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, Ruby 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 Ct Colored Diamond (Cushion) | 1 Ct Ruby (Cushion) | |
| 5.83×5.83 mm | vs | 5.59×5.59 mm |
| 30.59 mm² | 28.12 mm² |
| 1ct Colored Diamond Cushion (5.83×5.83mm) | |
| 1ct Ruby Cushion (5.59×5.59mm) | |
| Difference: 9% (2.47 mm²) |
1ct Colored Diamond (Cushion, 5.83×5.83mm) has approx. 9% more face-up area than 1ct Ruby (Cushion, 5.59×5.59mm).
Popular comparisons:
- 1ct Diamond (Cushion, Yellow, 5.83 x 5.83) vs. 0.85ct Diamond (Cushion, Yellow, 5.52 x 5.52)
- 1ct Diamond (Cushion, Yellow, 5.83 x 5.83) vs. 1ct Diamond (Round, Yellow, 6.5 x 6.5)
- 1ct Diamond (Cushion, Yellow, 5.83 x 5.83) vs. 0.8ct Diamond (Cushion, Yellow, 5.41 x 5.41)
- 1ct Diamond (Cushion, Yellow, 5.83 x 5.83) vs. 1ct Ruby (Round, Red, 5.98 x 5.98)
- 2ct Diamond (Cushion, White, 7.34 x 7.34) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Diamond (Cushion, White, 5.8 x 5.8) vs. 1.03ct Diamond (Round, White, 6.56 x 6.56)
- 1.56ct Diamond (Cushion, White, 6.27 x 6.27) vs. 1.66ct Diamond (Cushion, White, 6.49 x 6.47)
- 1ct Diamond (Cushion, White, 5.83 x 5.83) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)