1.69 Carat Tanzanite Oval (9.6×6.4 mm)
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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?
Where to buy?
For Tanzanite check what Amazon has to offer. You'll usually find quite a selection from many different vendors. Worth a check. For other high quality gemstones (Rubies, Saphhires, Emeralds) and especially Diamonds, I highly recommend JamesAllen.
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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1.69 ct |
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Gram weight:
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0.34 g (0.0119 ounces) |
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Points:
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169 pts |
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Length:
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9.6 mm |
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Width:
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6.4 mm |
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Est. face-up size:
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50.38 mm² |
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Volume:
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102.42 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:
- 1.69ct Tanzanite (Oval, Blue, 9.6 x 6.4) vs. 3.11ct Tanzanite (Oval, Blue, 11 x 7.33)
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 1ct Morganite (Oval, Light Purple, 8.63 x 5.75)
- 2ct Tanzanite (Oval, Blue, 10.16 x 6.77) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 4.5ct Tanzanite (Oval, Blue, 12 x 10) vs. 5ct Tanzanite (Cushion, Blue, 12 x 8)
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 20ct Tanzanite (Oval, Blue, 21.89 x 14.59) vs. 20.5ct Tanzanite (Oval, Blue, 22.07 x 14.71)
- 0.8ct Tanzanite (Oval, Blue, 7.49 x 4.99) vs. 1.3ct Tanzanite (Round, Blue, 6.96 x 6.96)
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 2ct Sapphire (Oval, Blue, 9.53 x 6.35)
- 2ct Tanzanite (Oval, Blue, 10.16 x 6.77) vs. 22ct Topaz (Oval, Blue, 22.1 x 14.73)
- 6ct Tanzanite (Oval, Blue, 14.66 x 9.77) vs. 1.5ct Tanzanite (Oval, Blue, 9.23 x 6.15)
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