4.7ct Ruby (Round, 10.01×10.01mm, Red) vs 2ct Alexandrite (Marquise, 12×6mm, Bluish Green)
Quick summary: When looked from above (face-up position), 4.7ct Ruby (10.01×10.01mm, round cut) appears 54% larger than 2ct Alexandrite (12×6mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 4.7ct Ruby (round cut) |
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2ct Alexandrite (marquise cut) |
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red |
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| 10.01×10.01 mm | 12×6 mm | |
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Actual sizes of
4.7ct Ruby Round (10.01×10.01mm, Red)
and
2ct Alexandrite Marquise (12×6mm, Bluish Green)
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 Alexandrite for a given
carat weight, because it has higher specific gravity
(4 vs. 3.7 - this means it's "heavier" compared to Alexandrite 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.
| 4.7 Ct Ruby (Round) | 2 Ct Alexandrite (Marquise) | |
| 10.01×10.01 mm | vs | 12×6 mm |
| 78.7 mm² | 51.12 mm² |
| 4.7ct Ruby Round (10.01×10.01mm) | |
| 2ct Alexandrite Marquise (12×6mm) | |
| Difference: 54% (27.58 mm²) |
4.7ct Ruby Round (10.01×10.01mm) has approx. 54% more face-up area than 2ct Alexandrite Marquise (12×6mm).
Popular comparisons:
- 4.7ct Ruby (Round, Red, 10.01 x 10.01) vs. 12.5ct Ruby (Round, Red, 13.87 x 13.87)
- 4.7ct Ruby (Round, Red, 10.01 x 10.01) vs. 1ct Ruby (Round, Red, 5.98 x 5.98)
- 4.7ct Ruby (Round, Red, 10.01 x 10.01) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)
- 4.7ct Ruby (Round, Red, 10.01 x 10.01) vs. 1.8ct Alexandrite (Marquise, Bluish Green, 12.32 x 6.16)
- 4.7ct Ruby (Round, Red, 10.01 x 10.01) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Ruby (Round, Red, 8.62 x 8.62) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 0.5ct Ruby (Round, Red, 4.75 x 4.75) vs. 0.5ct Emerald (Round, Green, 5.41 x 5.41)
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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.