0.65ct Ruby (Oval, 6.56×4.37mm, Red) vs 0.5ct Diamond (Round, 5.16×5.16mm, White)
Quick summary: When looked from above (face-up position), 0.65ct Ruby (6.56×4.37mm, oval cut) appears 12% larger than 0.5ct Diamond (5.16×5.16mm, round cut). See below how they compare side-by-side on a ring and finger.
| 0.65ct Ruby (oval cut) |
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0.5ct Diamond (round cut) |
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red |
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| 6.56×4.37 mm | 5.16×5.16 mm | |
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Actual sizes of
0.65ct Ruby Oval (6.56×4.37mm, Red)
and
0.5ct Diamond Round (5.16×5.16mm, 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, 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.
| 0.65 Ct Ruby (Oval) | 0.5 Ct Diamond (Round) | |
| 6.56×4.37 mm | vs | 5.16×5.16 mm |
| 23.51 mm² | 20.91 mm² |
| 0.65ct Ruby Oval (6.56×4.37mm) | |
| 0.5ct Diamond Round (5.16×5.16mm) | |
| Difference: 12% (2.6 mm²) |
0.65ct Ruby Oval (6.56×4.37mm) has approx. 12% more face-up area than 0.5ct Diamond Round (5.16×5.16mm).
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. 2.9ct Sapphire (Cushion, Blue, 7.5 x 8.5)
- 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. 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)
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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.