2.7 Carat Tanzanite Oval (11.24×7.49mm, Blue)
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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
Tanzanite is a blue variety of the mineral Zoisite. It got its name after the East African country of Tanzania, were it was discovered in 1967. Most of Tanzanite on the market today is heat treated.
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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Tanzanite |
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Mineral Class:
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Zoisite |
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Shape:
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Oval |
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Chemical Formula:
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Ca2Al3(SiO4)3(OH) |
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Crystal Structure:
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Orthorhombic |
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Hardness:
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6-6.5 |
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Specific Gravity
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3.3 |
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Carat weight:
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2.7 ct |
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Gram weight:
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0.54 g (0.019 ounces) |
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Points:
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270 pts |
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Length:
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11.24 mm |
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Width:
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7.49 mm |
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Est. face-up size:
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69.03 mm² |
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Volume:
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163.64 mm³ |
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Length-to-width ratio:
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1.5 |
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Refractive Index:
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1.69 - 1.70 |
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Cleavage:
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1,1 |
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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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Very good |
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Care Instructions:
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gentle wear recommended |
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Color:
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|
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Birthstone:
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Tanzanite is a birthstone for the month of December |
Popular comparisons:
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 1.03ct Diamond (Pear, White, 9.13 x 5.5)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 3.67ct Sapphire (Oval, Blue, 11.67 x 7.78)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 2ct Sapphire (Marquise, Blue, 12.44 x 6.22)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 3.85ct Sapphire (Oval, Blue, 11.85 x 7.9)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 1.65ct Sapphire (Oval, Blue, 8.94 x 5.96)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 4.9ct Sapphire (Princess, Blue, 9.13 x 9.13)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 4.9ct Sapphire (Cushion, Blue, 9.5 x 9.5)
- 2.7ct Tanzanite (Oval, Blue, 11.24 x 7.49) vs. 1.5ct Sapphire (Cushion, Blue, 6.4 x 6.4)
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