0.65ct Ruby (Oval, 6.56×4.37mm, Red) vs 2.9ct Sapphire (Cushion, 7.5×8.5mm, Blue)
Quick summary: When looked from above (face-up position), 2.9ct Sapphire (7.5×8.5mm, cushion cut) appears 2.4 times larger than 0.65ct Ruby (6.56×4.37mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 0.65ct Ruby (oval cut) |
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2.9ct Sapphire (cushion cut) |
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red |
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| 6.56×4.37 mm | 7.5×8.5 mm | |
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Actual sizes of
0.65ct Ruby Oval (6.56×4.37mm, Red)
and
2.9ct Sapphire Cushion (7.5×8.5mm, 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
Ruby and Sapphire 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.
| 0.65 Ct Ruby (Oval) | 2.9 Ct Sapphire (Cushion) | |
| 6.56×4.37 mm | vs | 7.5×8.5 mm |
| 23.51 mm² | 57.38 mm² |
| 0.65ct Ruby Oval (6.56×4.37mm) | |
| 2.9ct Sapphire Cushion (7.5×8.5mm) | |
| Difference: 144% (33.87 mm²) |
2.9ct Sapphire Cushion (7.5×8.5mm) has approx. 144% more face-up area than 0.65ct Ruby Oval (6.56×4.37mm). In other words, it's 2.44x larger.
Popular comparisons:
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 1.2ct Diamond (Round, White, 6.4 x 6.4)
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 0.65ct Ruby (Oval, Red, 5.82 x 4.73)
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 0.8ct Ruby (Oval, Red, 7.02 x 4.68)
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 4ct Ruby (Oval, Red, 11 x 8.15) vs. 2.75ct Diamond (Oval, White, 11.37 x 7.58)
- 2ct Ruby (Oval, Red, 9.53 x 6.35) vs. 1.13ct Diamond (Round, White, 6.77 x 6.77)
Enter your screen size (diagonal)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.