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Purchase and identification of original tanzanite stone - Tanzanite has an attractive glassy luster

To improve it, the heating method is used, in the field of this gem, stones with deep and bold color are the most valuable; But this color can only be seen in stones weighing more than five carats

Tanzanite is a gemstone with a hardness of 6 to 7 on the Mohs scale and has a range of blue-violet color from light to dark, and blue-purple and pure blue

The most prized Tanzanite Stones exhibit a deep, vibrant blue or violet color. Lesser quality stones may appear pale or have a brownish tint. Tanzanite displays different colors when viewed from different angles (typically blue, violet, and burgundy). A good-quality Stone will show strong pleochroism. Look for stones with minimal to no visible inclusions. High clarity tanzanite is more valuable. The stone should be transparent, allowing light to pass through without significant obstruction. A well-cut tanzanite will have good symmetry and proportions, enhancing its color and brilliance. Popular cuts include oval, cushion, and round, but any shape can be chosen based on personal preference.

By considering the factors of color, clarity, cut, carat weight, and ensuring proper certification, you can make an informed and confident purchase. Additionally, familiarizing yourself with the methods of identifying authentic tanzanite will help in distinguishing genuine stones from imitations. Larger stones are generally more valuable, especially if they maintain good color and clarity. However, quality should not be sacrificed for size. Ensure the tanzanite comes from reputable sources. Tanzanite is only found in Tanzania, so verify its origin. Purchase tanzanite that comes with a certificate from a respected gemological laboratory (e.g., GIA, AGS). This certifies the stone’s authenticity and quality.

Tanzanite is a Gemstone with a hardness of 6 to 7 on the Mohs scale and has a range of blue-violet color from light to dark, and blue-purple and pure blue. To improve it, the heating method is used, in the field of this gem, stones with deep and bold color are the most valuable; But this color can only be seen in stones weighing more than five carats. The weight of the stone is an important point in the cutting process. When a tanzanite gemstone is purchased, the stone should appear completely clear to the eye. Tanzanite has an attractive glassy luster. Flaws that can be seen with the naked eye reduce the value of this stone, except in some very rare cat's eye tanzanites, where the presence of flaws causes the phenomenon of variable brilliance.

Before purchasing a tanzanite gem, it is important to remember that tanzanite measures between 6 and 7 on the Mohs scale and is therefore not a particularly hard stone. As such, tanzanite can be more prone to scratching and damage, and as a result may not be the most suitable stone for everyday ring wear. If you decide to buy tanzanite, use a 10x loupe to check for cut, clarity, and any chips or cracks. It is also recommended to compare a number of stones to measure color and color saturation. By following these short steps, you can better ensure that you end up with a good quality tanzanite specimen.

Use a jeweler’s loupe to inspect for natural inclusions. Complete absence of inclusions may indicate a synthetic stone. Rotate the stone under different lighting conditions. Genuine tanzanite will show different colors (blue, violet, burgundy) depending on the viewing angle. Under ultraviolet (UV) light, genuine tanzanite may exhibit a soft glow. Synthetic stones might not show this reaction. Most tanzanite is heat-treated to enhance its color. Untreated tanzanite is rare and may have a different value. A gemological report can confirm the presence or absence of heat treatment. Tanzanite has a specific refractive index range (1.69 to 1.70). A gemologist can measure this to confirm authenticity. Ensure the stone comes with a certificate from a reputable gemological laboratory. This document will confirm the stone’s identity, quality, and any treatments it has undergone.

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