3ct Ruby (Princess, 7.75×7.75mm, Red) vs 2ct Diamond (Princess, 6.94×6.94mm, White)
Quick summary: When looked from above (face-up position), 3ct Ruby (7.75×7.75mm, princess cut) appears 25% larger than 2ct Diamond (6.94×6.94mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 3ct Ruby (princess cut) |
vs
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2ct Diamond (princess cut) |
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red |
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| 7.75×7.75 mm | 6.94×6.94 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
3ct Ruby Princess (7.75×7.75mm, Red)
and
2ct Diamond Princess (6.94×6.94mm, 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.
| 3 Ct Ruby (Princess) | 2 Ct Diamond (Princess) | |
| 7.75×7.75 mm | vs | 6.94×6.94 mm |
| 60.06 mm² | 48.16 mm² |
| 3ct Ruby Princess (7.75×7.75mm) | |
| 2ct Diamond Princess (6.94×6.94mm) | |
| Difference: 25% (11.9 mm²) |
3ct Ruby (Princess, 7.75×7.75mm) has approx. 25% more face-up area than 2ct Diamond (Princess, 6.94×6.94mm).
Popular comparisons:
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 5ct Ruby (Princess, Red, 9.19 x 9.19)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 3ct Diamond (Princess, White, 7.95 x 7.95)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 1ct Hiddenite (Emerald, Light Green , 6.9 x 5.11)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 4ct Ruby (Baguette, Red, 11 x 7.33)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 4ct Ruby (Emerald, Red, 10.14 x 7.51)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 8ct Ruby (Princess, Red, 10.75 x 10.75)
- 3ct Ruby (Princess, Red, 7.75 x 7.75) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)