This Tanzanite is Natural Gemstone Which is Dark Grey Colour, it’s Originates from Tanzania and it’s exact Weight is 4.76ct, The Measurements are 12.69×9.57×5.11mm. The Shape and Cut of This Stone is Oval Cabochon It’s Graded Translucent and Clarity is Good. This 4.76ct Grey Natural Tanzanite Gem is available for ready to Ship anywhere in The World. You Can also Select Certification and Shipment Method as Optional.u
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International Express Shipping: Most probably your shipment will reach in 3 to 7 business days Fixed international Express Shipping Charges is $40. Please read our International Orders Policies to understand local custom procedure and duties.
International Standard Shipping: Most probably your shipment will reach in 7 to 45 business days Fixed Standard Shipping Charges is $10. Please read International Orders Policies to understand local custom procedure and duties.
Domestic Express Shipping: Most probably your shipment will reach in 1 to 3 business days Fixed Domestic Express Courier Charges is Rs 450. (Applicable Only In India) Read Domestic Order Policies
Domestic Standard Shipping: Most probably your shipment will reach in 3 to 7 business days Fixed Standard Courier Charges is Rs 200. (Applicable Only In India) Read Domestic Order Policies
All Gemstones Are Natural!! (If the gem have any treatments we mention in description clearly).
We don’t sell Glass Filled Rubies, Sapphires and also highly treated gemstones. All the product photos are actual gemstone photos.
If you are not satisfied with our product you can get money back return in 10 Days without any hassle. Read Our Return Policies
All Product Get standard GemFame Gemstone Report along with your orders. If you want a certificate for registered Lab, We also provide additional gemstones certificate from NGL (National Gem Lab) which is located in India is chargeable. Read More
Every gem has it’s own unique quality, Size, weight & colour so you can get only 1 quantity in each item.
Properties Of Tanzanite
Chemical Composition: Ca2Al3[OlOHlSiO4lSiO7] calcium aluminium silicate
Hardness: 6 1/2 – 700Moh
Specific Gravity (Density): 3.35
Refractive Index: 1.691 – 1.700(DR)
Tanzanite belongs to zoisite, The mineral zoisite (named after the collector Zois) was first found in the Sau-Alp mountains in karnten, austria, in 1805. It was originally called saualpite, and gemstone quality specimens have only recently been found. The gemstone members of the group are tanzanite and thulite as well as anyolite. For the time being, only individual specimens and/or small amounts of other transparent zoisite varieties of gemstone quality(colourless, green, brown) are known.
The name tanzanite (after Tanzania) was introduced by the New York jewellers Tiffany&Co. In good quality the colour is ultramarine to sapphire blue; in artificial light, it appears more amethyst violet. When heated to 752-932 degrees F (400-500 degree C), the interfering yellowish and brown tints vanish, and the blue deepens. Green tanzanite is rare. Tanzanite cat’s eye is also rarely found. It is used in facet cut. The only deposit is in Tanzania near Arusha; it occurs in veins or filling of fissures of gneisses. Possibilities for confusion with amethyst, iolite, lazulite, sapphire, spinel, and synthetic corundum. There are glass imitations and doublets made from glass with tanzanite crown or made from two colourless synthetic spinels glued with tanzanite-coloured glue.