Tanzanite is a gorgeous gemstone of striking brilliance and breathtaking blue purple or purple blue color. At first, the stone was called Blue Zoisite but it was thought in the jewelry trade that the name sounded like blue suicide and would not sell well. Hence, as a part of the marketing campaign, the gemstone was renamed by Tiffany after the country of its origin, Tanzania.
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| 13.43 ct Natural Blue Tanzanite 16x12x8.10 mm Cabochon Oval Jewelry Gemstone | Natural African Tanzanite 14.65 Carat Briolette Pear Shape Cut Excellent Quality Loose Gemstone | 17.72 ct Natural Blue Tanzanite 18.1×12.6×8.7 mm Cabochon Oval Jewelry Gemstone |
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Tanzanite is the blue or purple variety of the mineral zoisite (calcium aluminium hydroxy sorosilicate) which has the chemical formula of Ca2Al3(SiO4)(Si2O7)O(OH).
Contrary to the other gemstones which are known to mankind since ancient times and steeped in history, this is a truly modern gemstone discovered only recently in 1967.
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| Double Use Design Jewelry 18kt White Gold Diamond Blue Tanzanites Ring Pendant | Jewelry Sets 18K White Gold Engagement Blue Tanzanites Brilliant Diamond Men Ring | Jewelry Sets 14kt White Gold Real Diamond Blue Tanzanites Women Girl Mother Ring |
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It was the Masaai tribesmen of Tanzania who stumbled upon the shining blue crystals in the foothills of Tanzania’s Mount Kilimanjaro in 1967. It is fabled that the brown crystals lying on the parched earth were caught in a fire lighted by lightning that struck the grass-covered hills. As Tanzanites are brownish in color in raw state, the crystals lying on the surface were never seen. After the grassfire had heated the stones, they turned a bright, sparkling violet-blue. The Masai herders grazing cattle in the area spotted the beautiful blue color, becoming the first collectors of this gemstone. Initially mistaken for Sapphire it was later correctly recognized as belonging to the family of mineral Ziosite.
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| 500Cts.Natural Raw Tanzanites Crystal Blue Natural Rough Tanzanite Gemstone | 500Cts Natural Raw Tanzanites Crystal Blue Natural Rough Tanzanite Gemstone |
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In the rough state most this stone is predominantly brown. Heating upto 500 -600 degrees centigrade leads to this color to change to blue. This is a permanent and stable change. Practically all gemstones of blue violet color have been heat-treated to enhance the color. With the heat treatment, the gemstones do not alter in quality, only in appearance.
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| 2.34 Ct Blue Tanzanite White Diamond 925 Sterling Silver Pendant Earrings Set | 1.97 Ct Round Blue Tanzanites Sterling Silver Pendant and Earrings Set |
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Similar to other gemstones, while selecting a tanzanite gemstone, the four Cs should be considered which are as under:
Color
Color is the most important aspect to be considered. The unanimously acknowledged official grading system for colored gems is the Gemological Institute of America (GIA) system but other grading systems are also in existence.
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| 14K Solid White Gold Stud Earrings with Natural Tanzanites | 14K Solid Gold Stud Earrings with Natural Tanzanites | 14K Solid Rose Gold Stud Earrings with Natural Tanzanites |
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The GIA grade for stones with the most desirable color is bv 6/5 or vB 6/5 and is reserved for the deep blue stones with a hint of violet. The other industry grades given to such stones are AAAA or AAA. These are the best quality investment worthy tanzanite gemstones.
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| 14K Rose Gold Tanzanites & Diamond Ring, 2.53 TCW | Diamond & AA Tanzanites Ring in 14K Gold | 10K White or Yellow Gold Natural Tanzanites Ring Oval 8x6mm Diamond Accent |
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The most remarkable attribute of Tanzanite is that most of the good quality stones include a Trichroic effect. A Gemstone possessing Trichroic effect can reflect 3 unique colors at a time based on the angle from which you look at the stone. One direction is blue, another purple, and another bronze, adding subtle depths to the color.
Clarity
Clarity is the second most important factor of the 4 c’s when determining Tanzanite quality. Clarity refers to how inclusion-free a gemstone is. Once again there is the GIA system along with other trade based systems in use. Tanzanite should be at least eyeclean but preferably loupeclean too. Top stones are loupeclean. The GIA grades for clarity are VVS very very slightly included, VS very slightly included, SI1 – SI2 slightly included and the lowest grade I1, I2 and I3 given to imperfect stones.
925 Sterling Silver Women Ring London Blue Topaz Tanzanites and White Zircon Gemstone Stud with Yellow Gold Tone
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A top quality stone must be of VVS grade. A lower clarity grade will affect the value downwards and indicates a lower grade stone.
Carat Weight
Generally tanzanite gemstones stones come in the one to ten carat range size. As weight increases stones in the same quality gemstone will cost you more per carat.
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| December Birthstone – Three Stone Emerald-Cut Tanzanites and Diamond Ring for Women | East-West Oval Gemstone Solitaire Ring with Diamonds | Bezel Set Round Gemstone Stackable Ring |
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Cut
Tanzanites are found in a variety of shapes and cutting styles. Ovals and cushions are the most prevalent, but rounds are also seen, as are other shapes, including emerald cuts, trillions, etc. Cabochon-cut tanzanites are not often seen.
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| Blue Tanzanite 14K White Gold Pendant with Diamonds | Beyond jewelry Blue Tanzanites Diamonds Wedding 14K White Gold Pendant | 14K White Gold Blue Tanzanites Pendant with Diamonds Pendant |
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The gemstone goes well with every kind of jewelry be it Yellow Gold, White Gold Or Diamonds. But since it is a relatively soft gemstone with a hardness of 6.5 on the mohs scale of mineral hardness it is normally worn as an earring or pendant. It is bezel set in a ring to give it protection.
14k White Gold Diamond and Gemstone Ring
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Don’t expose the gemstone to sudden changes of temperature like going from hot tubs to very cold water and reaching from ovens to a cold sink.
You should be careful with your Tanzanite jewelry and you should not wear it while doing work like gardening, washing clothes or cooking where there is a chance of physical impact of the stone with hard surfaces.
925 Sterling Silver Flower Tanzanites Stud Earring Jewelry
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Store it in a soft cloth protected from other pieces of jewelry.
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| 925 Sterling Silver Real Genuine Opal and Tanzanites Womens Band Ring | 925 Sterling Silver Real Genuine Opal and Tanzanites Womens Band Ring | 14k White Gold Real Genuine Opal and Tanzanites Womens Band Ring |
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| 14K White Gold Natural Genuine Blue Tanzanite Earrings 1.80 Ct Gemstone Birthstone Stud 6MM Round | Diamond Natural Tanzanite 14K Yellow Gold Earrings Set | 2.65 Carat Natural Blue Tanzanite and Diamond (F-G Color, VS1-VS2 Clarity) 14K Yellow Gold Stud Earrings |
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| 925 Sterling Silver Natural Opal and Tanzanite Womens Cluster Ring | 925 Sterling Silver Real Genuine Opal and Tanzanite Womens Band Ring | 10k White Gold Real Genuine Opal and Tanzanite Womens Band Ring |
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| Vintage Blue Natural Tanzanite White Gold 14K Real Diamond Dangle Engagement Earrings | 14K White Gold Solid Natural Tanzanite Diamond Engagement Earrings | 2.05ctw Kate Middleton Fashion Natural Oval-Cut Tanzanite and Diamond Accented Stud Earrings 14k White Gold |
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