1ct Alexandrite (Round, 6.14×6.14mm, Dark Violet) vs 1ct Diamond (Oval, 8.12×5.41mm, White)
Quick summary: When looked from above (face-up position), 1ct Diamond (8.12×5.41mm, oval cut) appears 22% larger than 1ct Alexandrite (6.14×6.14mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1ct Alexandrite (round cut) |
vs
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1ct Diamond (oval cut) |
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dark violet |
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| 6.14×6.14 mm | 8.12×5.41 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
1ct Alexandrite Round (6.14×6.14mm, Dark Violet)
and
1ct Diamond Oval (8.12×5.41mm, 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 Ct Alexandrite (Round) | 1 Ct Diamond (Oval) | |
| 6.14×6.14 mm | vs | 8.12×5.41 mm |
| 29.61 mm² | 36.02 mm² |
| 1ct Alexandrite Round (6.14×6.14mm) | |
| 1ct Diamond Oval (8.12×5.41mm) | |
| Difference: 22% (6.41 mm²) |
1ct Diamond (Oval, 8.12×5.41mm) has approx. 22% more face-up area than 1ct Alexandrite (Round, 6.14×6.14mm).
Popular comparisons:
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 1ct Emerald (Emerald, Yellowish Green, 7.28 x 5.39)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 0.75ct Alexandrite (Emerald, Dark Violet, 5.95 x 4.41)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 1ct Citrine (Emerald, Light Orange, 7.33 x 5.43)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 1.5ct Alexandrite (Round, Dark Violet, 7.02 x 7.02)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 1ct Emerald (Round, Green, 6.82 x 6.82)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 1ct Emerald (Emerald, Dark Yellowish Green, 7.28 x 5.39)
- 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14) vs. 0.75ct Alexandrite (Round, Dark Violet, 5.57 x 5.57)