0.8ct Sapphire (Cushion, 5.19×5.19mm, Blue) vs 0.75ct Ruby (Cushion, 5.08×5.08mm, Red)
Quick summary: When looked from above (face-up position), 0.8ct Sapphire (5.19×5.19mm, cushion cut) appears 4% larger than 0.75ct Ruby (5.08×5.08mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 0.8ct Sapphire (cushion cut) |
vs
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0.75ct Ruby (cushion cut) |
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blue |
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| 5.19×5.19 mm | 5.08×5.08 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
0.8ct Sapphire Cushion (5.19×5.19mm, Blue)
and
0.75ct Ruby Cushion (5.08×5.08mm, 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
Sapphire and Ruby have the same specific gravity so their face-up size
depends on the weight, shape and 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.
| 0.8 Ct Sapphire (Cushion) | 0.75 Ct Ruby (Cushion) | |
| 5.19×5.19 mm | vs | 5.08×5.08 mm |
| 24.24 mm² | 23.23 mm² |
| 0.8ct Sapphire Cushion (5.19×5.19mm) | |
| 0.75ct Ruby Cushion (5.08×5.08mm) | |
| Difference: 4% (1.01 mm²) |
0.8ct Sapphire (Cushion, 5.19×5.19mm) has approx. 4% more face-up area than 0.75ct Ruby (Cushion, 5.08×5.08mm).
Popular comparisons:
- 0.8ct Sapphire (Cushion, Blue, 5.19 x 5.19) vs. 0.9ct Sapphire (Oval, Blue, 7.31 x 4.87)
- 0.8ct Sapphire (Cushion, Blue, 5.19 x 5.19) vs. 0.6ct Sapphire (Oval, Blue, 6.38 x 4.25)
- 0.8ct Sapphire (Cushion, Blue, 5.19 x 5.19) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.8ct Sapphire (Cushion, Blue, 5.19 x 5.19) vs. 0.8ct Diamond (Cushion, White, 5.41 x 5.41)
- 0.8ct Sapphire (Cushion, Blue, 5.19 x 5.19) vs. 2ct Diamond (Cushion, White, 7.34 x 7.34)
- 0.8ct Sapphire (Cushion, Blue, 5.19 x 5.19) vs. 3.14ct Aquamarine (Emerald, Light Blue, 10.67 x 7.9)
- 12ct Sapphire (Cushion, Blue, 12.8 x 12.8) vs. 2ct Ruby (Cushion, Red, 7.04 x 7.04)
- 3.59ct Sapphire (Cushion, Blue, 8.2 x 8.3) vs. 6.22ct Emerald (Emerald, Green, 12.4 x 10.9)