1.5ct Alexandrite (Round, 7.02×7.02mm, Bluish Green) vs 1.3ct Diamond (Emerald, 7.29×5.4mm, White)
Quick summary: When looked from above (face-up position), 1.5ct Alexandrite (7.02×7.02mm, round cut) appears 6% larger than 1.3ct Diamond (7.29×5.4mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.5ct Alexandrite (round cut) |
vs
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1.3ct Diamond (emerald cut) |
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bluish green |
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| 7.02×7.02 mm | 7.29×5.4 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
1.5ct Alexandrite Round (7.02×7.02mm, Bluish Green)
and
1.3ct Diamond Emerald (7.29×5.4mm, 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
(3.73 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.
| 1.5 Ct Alexandrite (Round) | 1.3 Ct Diamond (Emerald) | |
| 7.02×7.02 mm | vs | 7.29×5.4 mm |
| 38.7 mm² | 36.61 mm² |
| 1.5ct Alexandrite Round (7.02×7.02mm) | |
| 1.3ct Diamond Emerald (7.29×5.4mm) | |
| Difference: 6% (2.09 mm²) |
1.5ct Alexandrite (Round, 7.02×7.02mm) has approx. 6% more face-up area than 1.3ct Diamond (Emerald, 7.29×5.4mm).
Popular comparisons:
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 2.2ct Alexandrite (Round, Bluish Green, 7.98 x 7.98)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1.5ct Emerald (Emerald, Green, 8.33 x 6.17)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1.5ct Alexandrite (Marquise, Bluish Green, 11.6 x 5.8)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1.5ct Alexandrite (Oval, Bluish Green, 8.88 x 5.92)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1.5ct Alexandrite (Emerald, Bluish Green, 7.51 x 5.56)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1.5ct Alexandrite (Pear, Bluish Green, 9.76 x 5.88)
- 1.5ct Alexandrite (Round, Bluish Green, 7.02 x 7.02) vs. 1ct Sinhalite (Cushion, Light Brown, 5.86 x 5.86)