1.2ct Ruby (Oval, 8.65×6.61mm, Red) vs 1.25ct Diamond (Round, 7×7mm, White)
Quick summary: When looked from above (face-up position), 1.2ct Ruby (8.65×6.61mm, oval cut) appears 22% larger than 1.25ct Diamond (7×7mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1.2ct Ruby (oval cut) |
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1.25ct Diamond (round cut) |
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red |
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| 8.65×6.61 mm | 7×7 mm | |
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Actual sizes of
1.2ct Ruby Oval (8.65×6.61mm, Red)
and
1.25ct Diamond Round (7×7mm, 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.
| 1.2 Ct Ruby (Oval) | 1.25 Ct Diamond (Round) | |
| 8.65×6.61 mm | vs | 7×7 mm |
| 46.88 mm² | 38.48 mm² |
| 1.2ct Ruby Oval (8.65×6.61mm) | |
| 1.25ct Diamond Round (7×7mm) | |
| Difference: 22% (8.4 mm²) |
1.2ct Ruby Oval (8.65×6.61mm) has approx. 22% more face-up area than 1.25ct Diamond Round (7×7mm).
Popular comparisons:
- 1.2ct Ruby (Oval, Red, 8.65 x 6.61) vs. 1.2ct Ruby (Round, Red, 6.5 x 6.5)
- 1.2ct Ruby (Oval, Red, 8.65 x 6.61) vs. 1.2ct Ruby (Round, Red, 6.35 x 6.35)
- 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)
- 0.65ct Ruby (Oval, Red, 6.56 x 4.37) vs. 1.2ct Diamond (Round, White, 6.4 x 6.4)
- 1ct Ruby (Oval, Red, 7 x 5) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 3ct Ruby (Oval, Red, 10.91 x 7.27) vs. 3ct Sapphire (Oval, Blue, 10.91 x 7.27)
- 15ct Ruby (Oval, Red, 18.66 x 12.44) vs. 14ct Ruby (Oval, Red, 18.23 x 12.15)
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.