Tanzanite Valuation Report #96093 (1.52ct, color: 169 - medium bluish Violet strong).Tanzanite Valuation Report #96051 (2.97ct, color: 160 - medium violetish Blue strong).Tanzanite Valuation Report #96048 (1.93ct, color: 160 - medium violetish Blue strong).Tanzanite Valuation Report #107697 (1.81ct, color: 164 - light bluish Violet strong).Tanzanite Valuation Report #107611 (5.55ct, color: 158 - medium light violetish Blue strong) Gemstone Color, February birthstone color is mainly associated with purple, but every gem is.Tanzanite Valuation Report #100515 (1.58ct, color: 084 - medium light Green slightly greyish (unheated)).Tanzanite Valuation Report #96274 (0.90ct, color: 163 - very light bluish Violet).Tanzanite Valuation Report #93637 (2.15ct, color: 160 - medium violetish Blue strong).Tanzanite Valuation Report #129791 (6.76ct, color: 160 - medium violetish Blue strong) Quartz is the name given to a large group of minerals comprised of silicon dioxide SiO 2.Gemval valuation reports created by our customers using Online Appraisal Tool Tanzanite can be found only in the Merelani Hills area in Tanzania no other deposits of tanzanite have been found to date. the fact that the color of a given gemstone changes based on the angle at which it is viewed.
Another property that affects tanzanite's price is its color change, based on the source of light, as well as its pleochroism, i.e. Tanzanite's value also depends on its color, among other factors - blue gemstones with slight violet nuances are typically higher in value than purely violet specimens. The majority of amethyst on the market is a lighter purple color with some flaws. Many of the tanzanite gemstones available on the market have been heat-treated to enhance their color, which also affects tanzanite's price - natural deep blue tanzanites are very rare and highly appreciated. The saturation (and sometimes the nuance) of its color changes based on the angle at which it is viewed. With a hardness of 6 to 6.5 on Mohs scale, tanzanite is rather soft for a gemstone, which limits its use in jewelry, as it is prone to wear and scratching. Siberian Amethysts are considered the priciest gems. It fits in with macrocrystalline kind of quartz and comes in pink to dull purple shade. It is known as birthstone for the February month. As a general rule, the deeper the shade, the better-quality the amethyst. About Amethyst gemstone - History and Introduction Amethyst is one the most well known gemstone in all quartz stones. Purple quartz with this coloring are referred to as Siberian Amethysts. Tanzanite, a variety of the mineral zoisite, is a blue to blue-violet gemstone, frequently used in jewelry, that was popularized by Tiffany & Co after its discovery in the late 60s. The gems typically range in color from a faint lilac to a rich purple with red and blue tones.
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