Tanzanite is a rare blue-violet-coloured gem found in the hills of Tanzania and is a recent discovery. Tanzania is the only place where it is found.
The blue-coloured stone in the zoisite mineral family is tanzanite, a new discovery in the world of gemstones that is rarer than diamonds or rubies. Its glorious blue and violet hues look magically beautiful, and the violet blue colour in it is the same as the finest blue in sapphires.
Vandium and titanium are the elements responsible for giving it its color. The first finding of it is reported in the year 1967, but in a short time its popularity has increased near to and as a substitute to the blue sapphire. Tanzanite is mined in only Tanzania, where it got its name from.
Pleochroic nature: This means the ability of a gem to show different colours when seen from different directions. The crystals of tanzanite show three different colours when seen from various angles, so the cutters can turn the colour of the rough crystal by cutting style applied to it from bluish violet to violetish blue.
Tanzanites are much more rare than diamonds, rubies, or emeralds, as they have one single origin where they are mined, which is the Merelani Hills of Tanzania.
The zoisite mineral naturally occurs in various colours as green, grey, pink, colourless, yellow, brown, purple, violet, and blue; the word tanzanite denotes the blue, violet, and purplish colours and their colour combinations in zoisite.
Specifications: Mineral: Zoisite, Colour: violet-blue, violet-purple, bluish-violet, Refractive Index: 1.691 to 1.700, Mohs hardness: 6 to 7,
Specific gravity: 3.35; chemical formula: Ca2Al3(SiO4)3(OH)
All the tanzanite crystals mined are originally brown or burgundy to golden in colour, and to bring out their beautiful, appealing colours of violet blue, it is necessary to heat them, and the process is universal to all the tanzanite stones mined, so they are routinely heat treated to bring out their blueioviolet pearance. Once the gem is heated, the modified colour remains permanently on it. Tanzanites have also been reported a few times for coating to modify their colour.
Natural inclusions like needles, feathers, and included foreign crystals are present. Not much is discovered about tanzanite inclusions, but general graphite and corrosion tubes that intersect each other and growth tubes that do not intersect are there. Tanzanites also come included with liquid inclusions and lamellar twinning.
As with other colour gemstones, tanzanite pricing also depends on factors of clarity, colour, brilliance, and weight, but the thing uncommon is the effect of origin and treatment on pricing, as they just have one single origin in the mountains of Tanzania, making them rarer, and all the tanzanites are heat treated, which is commonly accepted and brings more value to the stone indeed.
Colour: The basic colour remaining the same, which is blue tanzanite, comes in a mix of purple and violet, with violet blue being the most sought-after shade. It should be deep enough; otherwise, light shades are plentiful and do not hold much value. The colour should be evenly spread in the stone so it looks more saturated with the least colour zoning.
Clarity: As a common understanding, any gem that is more clean and clear will be more appealing and rich. Tanzanites free from fissures and other inclusions are always better, especially the cracks should never open over the skin or surface of the stone, and cracks that run through the gemstone will make the stone vulnerable and cheap.
Brilliance: A gemstone is all about shine and lustre and is a symbol of beauty and enhancement, so almost any dull gemstone will always be less expensive than a tanzanie full of lustre and light.
Cut / polish: The cut has to be in proper proportions to bring out the best of tanzanite rough stone; the finished stone should just not be properly shaped but not be much in height or even very thin; the facets have to be applied properly to get maximum lustre and bring out a pleochroic effect in the gem. The polish is a vital part after the faces are applied, as that gets the shine in the stone.
Treatments: All the tanzanites are heated to bring out their most loved blue violet colours; otherwise, tanzanites are reddish brown, burgundy, and golden yellow in colour, though some are naturally heated within the ground, but then too, those also need heating to remove all unwanted shading and uneven colour saturation. The heat treatment is necessary for tanzanites and is accepted all over, and people still appreciate its value and price.
As the most trusted and reliable tanzanite dealer, we ship certified tanzanite all over the world to gem dealers, jewellers, etc. at the lowest rates guaranteed. The certification is available on demand by IGI, GIA, GRS, GJEPC, and other labs. We sell selected good-looking stones with adequate light and lustre with proper cut and polish and stones with no unwanted inclusions like table spots or big white patches and surface opening cracks. We supply tanzanite in New York, USA, Italy, Germany, London, UK, Russia, China, Bangkok, Thailand, Hong Kong, Brazil, Israel, Australia, France, and other major countries.
Jewelfields is a rated genuine supplier of loose precious gemstones and diamonds and seller of gold tanzanite jewellery like tanzanite rings, bracelets, earring/stud pairs, etc. Other gems, including original emeralds, rubies, and sapphires, are available with us.
Someone's value is determined by the trust other people hold in him/her, We here at Jewel Fields believe that the amount of trust people have in us should be more than what they have in themselves.
