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Tanzanite was first discovered in 1967 in Tanzania.
It is a rich blue variety of Zoisite.
Tanzanite is only mined in Tanzania.
The largest rough tanzanite was found in 2020.
The largest carved tanzanite is named ‘L’heure Bleu’.
Tanzanite is a birthstone for December.
The gemstone is believed to inspire calmness, compassion, and new life.
Tanzanite is rarer than diamonds.
There are many theories as to who first discovered tanzanite.
Tanzanite has a trichroism which makes it unusual.
Tanzanite Facts
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How To Choose The Best Tanzanite
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Which Color Tanzanite is unique in that it changes colors depending on
the light.
It’s bluer under fluorescent light and more violet under
incandescent light, and you can also see shades of red and
brown in it.
A high-quality tanzanite stone should be deep blue/dark
violet.
Stones that have a light color are considered low quality.
You should keep in mind that the color of almost all
tanzanite available is a result of heat treatment.
This is why it is not recommended to clean this stone with ultrasonic or steam cleaners.
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Clarity Tanzanite can be flawless or it can be heavily included.
Its quality and value is profoundly affected by its clarity
grade.
Hence, it is very important to understand the different terms
in use in the industry and which inclusions you may find in
Tanzanite.
The image above shows a common inclusions found in the
gem type - a "fingerprint" liquid inclusion.
Generally speaking, Tanzanite needs to be flawless to be
considered top grade as it is classed as a Type 1 gemstone by
the GIA.
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Tanzanite Cut Whereas the actual shape of a Tanzanite has little impact on
its value, the quality of the cut itself is very important.
It is an area which is often overlooked in this age of catalog
websites which sell huge quantities of medium grades cut in
the cutting houses of India.
These cutting houses generally use a myriad of weight saving
techniques when cutting which can increase the finished
weight of a Tanzanite by up to 30%.
This means the actual hidden cost of a Tanzanite can be vastly
greater than you realize.
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Tanzanite Weight This is the last of the 4 C’s and the one with the least impact on quality.
A carat is a unit of weight measurement and is in fact 1/5 of a gram.
Carat weight becomes important within quality brackets.
A 3 carat exceptional, investment grade color with top clarity will of course always be much rarer
and more valuable than a 10 carat B grade color containing inclusions.
Some gem minerals are very dense like Sapphire and Ruby and others are not, like Diamond and
Aquamarine.
To judge the size of a stone, always use the dimensions, particularly the face up dimensions to judge
size.
We include a useful Gem Dimension Chart on all our gem pages to help with this.
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Confidance
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Tanzanite is a birthstone for
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Variation of Tanzanite
The mineral zoisite naturally occurs in a
wide range of colors that include
colorless, gray, yellow, brown, pink,
green, blue, and violet.
The name "tanzanite" is used for a color
variety of zoisite that ranges from blue, through violet, to violetish purple.
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BONDI BLUE TANZANITE Bondi blue tanzanite is one of the rarest varieties of this
treasured gemstone with mixed shades of blue and green.
Tanzanite's incredible rarity and beauty have skyrocketed
it to the highest ranks of the gemstone kingdom.
Named after the sea-blue color seen on the beautiful Bondi
Beach in Australia this exotic gemstone displays the
revered deep blues of tanzanite tinged with rich green.
It exhibits a strong amount of pleochroism meaning that it
appears different colors when viewed from different
angles.
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Tanzanite Manufacturing Process
1. Rough Tanzanite From Zoisite Mineral
In its Rough form, tanzanite is extracted from blue zoisite mineral. This mineral occurs in only one country in all world- Tanzania, in the foothills of Mt Kilimanjaro.
2. Planning & Marking Tanzanite
The most crucial task in the creation of the perfect Tanzanite gemstone, this is where tanzanite nurtured at the hands of a skilled craftsman or a jeweler. The professional plans and decides, in consultation with the concerned owners, the cut, weight and carat of a precious gemstone. Tanzanite will then determine its market value.
3. Making Of Pre-Form
Making of Pre-form is a simple process by which a rough tanzanite divided into desired marked pieces. This marking is the done perpendicularly or against the planes that the tanzanite rough needs to be the sawn i.e. 'cut.‘
4. Bruting
In the process of Bruting, Tanzanite’s girdle is formed. It is called rounding. The girdle is the surface which created around the thickest part of the stone.
5. Polishing
This step makes the tanzanite into a Faceted pieces. The last steps in the manufacturing process of the tanzanite from where on it goes to the grading department.
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Story Tanzanite is the blue and violet variety of the mineral zoisite, caused by small amounts of vanadium.
Tanzanite belongs to the epidote mineral group.
Tanzanite is only found in Tanzania, in a very small mining area near the Mererani Hills.
Tanzanite is noted for its remarkably strong trichrorism, appearing alternately blue, violet and burgundy depending on crystal orientation.
Tanzanite can also appear differently when viewed under different 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 colored a reddish brown to clear, and it requires heat treatment to remove the brownish "veil" and bring out the blue violet of the stone.
The gemstone was given the name 'tanzanite' by Tiffany & Co. after Tanzania, the country in which it was discovered.
The scientific name of "blue-violet zoisite" was not thought to be sufficiently consumer friendly by Tiffany's marketing department, who introduced it to the market in 1968.
In 2002, the American Gem Trade Association chose tanzanite as a December birthstone, the first change to their birthstone list since 1912.
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Get In Touch
Head Office
404, Siddha Jewels,
Nathmalji Ka Katla,
Agra Road Jaipur 302003, Rajasthan, India
Contact No : +91-141-4062734