2ct Ruby (Princess, 6.77×6.77mm, Red) vs 2ct Diamond (Round, 8.19×8.19mm, White)
Quick summary: When looked from above (face-up position), 2ct Diamond (8.19×8.19mm, round cut) appears 15% larger than 2ct Ruby (6.77×6.77mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 2ct Ruby (princess cut) |
vs
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2ct Diamond (round cut) |
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red |
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| 6.77×6.77 mm | 8.19×8.19 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
2ct Ruby Princess (6.77×6.77mm, Red)
and
2ct Diamond Round (8.19×8.19mm, 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.
| 2 Ct Ruby (Princess) | 2 Ct Diamond (Round) | |
| 6.77×6.77 mm | vs | 8.19×8.19 mm |
| 45.83 mm² | 52.68 mm² |
| 2ct Ruby Princess (6.77×6.77mm) | |
| 2ct Diamond Round (8.19×8.19mm) | |
| Difference: 15% (6.85 mm²) |
2ct Diamond (Round, 8.19×8.19mm) has approx. 15% more face-up area than 2ct Ruby (Princess, 6.77×6.77mm).
Popular comparisons:
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 2ct Diamond (Princess, White, 6.94 x 6.94)
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 2ct Diamond (Princess, Yellow, 6.78 x 6.79)
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 2ct Emerald (Marquise, Green, 14.18 x 7.09)
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 2ct Sapphire (Princess, Blue, 6.77 x 6.77)
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 1.5ct Ruby (Round, Red, 6.84 x 6.84)
- 2ct Ruby (Princess, Red, 6.77 x 6.77) vs. 1ct Ruby (Marquise, Red, 9.88 x 4.94)
- 0.8ct Ruby (Princess, Red, 4.99 x 4.99) vs. 0.9ct Sapphire (Princess, Blue, 5.19 x 5.19)