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3.30 Crt Natural Tanzanite Top Color D-Block Faceted Gemstone
- SKU
- Dimensions (mm)
- 11.000 x 7.500 x 6.700mm
- Weight (cts)
- 3.300
- Type
- Faceted
- Colours
-
Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate) belonging to the epidotegroup. The gemstone was discovered by Manuel d’Souza in the Merelani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is only found in Tanzania, in a very small mining area (approximately 7 km long and 2 km wide) near the Mirerani Hills.
Tanzanite is noted for its remarkably strong trichroism, appearing alternately blue, violet and burgundy depending on crystalorientation. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. In its rough state tanzanite is usually colored a reddish brown, and much of it requires heat treatment to remove the brownish “veil” and bring out the blue violet of the stone.
Description:
Treatment : HEATED
- SKU
- Dimensions (mm)
- 11.000 x 7.500 x 6.700 mm
- Weight (cts)
- 3.300
- Type
- Faceted
- Colours
-
Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate) belonging to the epidotegroup. The gemstone was discovered by Manuel d’Souza in the Merelani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is only found in Tanzania, in a very small mining area (approximately 7 km long and 2 km wide) near the Mirerani Hills.
Tanzanite is noted for its remarkably strong trichroism, appearing alternately blue, violet and burgundy depending on crystalorientation. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. In its rough state tanzanite is usually colored a reddish brown, and much of it requires heat treatment to remove the brownish “veil” and bring out the blue violet of the stone.
Description:
Treatment : HEATED
| Shipping provider | Shipping to Thailand | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $8.00 / 7 days | $8.00 / 21 days |
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Rest of the world
Standard Shipping - Tracked is discounted to $15.00 on orders with 2 or more items
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| FedEx | $15.00 / 3 days | $25.00 / 7 days |
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Rest of the world
FedEx is discounted to $30.00 on orders with 2 or more items
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| Registered Shipping | $8.00 / 7 days | $8.00 / 21 days |
|
Thailand
Registered Shipping is discounted to $20.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $15.00 on orders with 2 or more items
|
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PositiveBeautiful pair
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Positive
Nice stone
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Positive
Beautiful !!! And just as described thank you
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Positive
Beautiful gem! Excellent clarity and great seller - fast shipping
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Positive
Stunning sapphire, looked exactly like the photos. It's rare for a seller to not alter their photos a ton. This seller seemed to have been very honest on the true look of the stone!
