5ct Alexandrite (Marquise, 17.32×8.66mm, Bluish Green) vs 6ct Diamond (Emerald, 12.14×8.99mm, White)
Quick summary: When looked from above (face-up position), 5ct Alexandrite (17.32×8.66mm, marquise cut) appears 5% larger than 6ct Diamond (12.14×8.99mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 5ct Alexandrite (marquise cut) |
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6ct Diamond (emerald cut) |
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bluish green |
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| 17.32×8.66 mm | 12.14×8.99 mm | |
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Actual sizes of
5ct Alexandrite Marquise (17.32×8.66mm, Bluish Green)
and
6ct Diamond Emerald (12.14×8.99mm, 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, Alexandrite will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(3.7 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.
| 5 Ct Alexandrite (Marquise) | 6 Ct Diamond (Emerald) | |
| 17.32×8.66 mm | vs | 12.14×8.99 mm |
| 106.49 mm² | 101.5 mm² |
| 5ct Alexandrite Marquise (17.32×8.66mm) | |
| 6ct Diamond Emerald (12.14×8.99mm) | |
| Difference: 5% (4.99 mm²) |
5ct Alexandrite Marquise (17.32×8.66mm) has approx. 5% more face-up area than 6ct Diamond Emerald (12.14×8.99mm).
Popular comparisons:
- 5ct Alexandrite (Marquise, Bluish Green, 17.32 x 8.66) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Alexandrite (Marquise, Bluish Green, 10.12 x 5.06) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 7ct Alexandrite (Marquise, Bluish Green, 19.38 x 9.69) vs. 2ct Alexandrite (Marquise, Bluish Green, 12.76 x 6.38)
- 1.5ct Alexandrite (Marquise, Bluish Green, 11.6 x 5.8) vs. 2ct Alexandrite (Marquise, Bluish Green, 12.76 x 6.38)
- 1ct Alexandrite (Marquise, Bluish Green, 10 x 5) vs. 1ct Alexandrite (Oval, Bluish Green, 8 x 6)
- 1ct Alexandrite (Marquise, Dark Bluish Green, 9.3 x 4.6) vs. 1ct Diamond (Marquise, White, 10.38 x 5.19)
- 0.24ct Alexandrite (Marquise, Bluish Green, 6.23 x 2.78) vs. 0.68ct Alexandrite (Oval, Bluish Green, 6.7 x 4.2)
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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.