3 Carat Alexandrite Emerald (9.45×7mm, Bluish Green)
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64 mm
| Your settings | |
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Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
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Ring diameter:
16.9 mm
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Additional Info
Named after Czar Alexander II (1818–1881) Alexandrite is a rare and valuable color-change variety of chrysoberyl. Alexandrite possesses a surprising ability to change color - from green or bluish-green in daylight, it transforms to purplish or raspberry red in incandescent light.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
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Name:
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Alexandrite |
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Mineral Class:
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Chrysoberyl |
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Shape:
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Emerald |
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Chemical Formula:
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BeAl2O4 |
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Crystal Structure:
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Orthorhombic |
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Hardness:
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8.5 |
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Specific Gravity
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3.7 |
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Carat weight:
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3 ct |
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Gram weight:
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0.6 g (0.0212 ounces) |
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Points:
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300 pts |
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Length:
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9.45 mm |
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Width:
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7 mm |
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Est. face-up size:
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61.52 mm² |
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Volume:
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162.16 mm³ |
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Length-to-width ratio:
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1.35 |
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Refractive Index:
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1.744 - 1.755 |
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Cleavage:
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1,1 ; 3,2 |
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Luster:
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Vitreous |
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Birefringence:
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0.009 |
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Wearability:
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Durable gem for daily wear |
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Care Instructions:
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No special or unusual care |
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Color:
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Birthstone:
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Alexandrite is a birthstone for the month of June |
Popular comparisons:
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Sapphire (Emerald, Blue, 9 x 7)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Aquamarine (Emerald, Light Blue, 10.5 x 7.78)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Apatite (Emerald, Green, 9.92 x 7.35)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Diopside (Emerald, Green, 9.81 x 7.27)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Hiddenite (Emerald, Light Green , 9.94 x 7.36)
- 3ct Alexandrite (Emerald, Bluish Green, 9.45 x 7) vs. 3ct Tanzanite (Emerald, Blue, 9.81 x 7.27)
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