Tanzanite Blue – The BMW of Gemstones

How powerful and unique is the appeal of the dark blue color emanating from a Tanzanite gemstone? More than enough to be a sought after color for a high-end car such as a BMW, we have heard. And while you may or may not be able to afford such a car right now, our quality gemstones set as rings, pendants and earrings are quite affordable.

Tanzanite Blue

If you are new to Tanzanite (possibly finding this blog while searching for “BMW”), TopTanzanite would like to share with you what regular readers know. Tanzanite is a deep, rich, blue color that speaks of individuality, power, and confidence.  Just look at this 1.00ct Trillion Tanzanite Pendant with .05ctw Diamonds in 14k  White Gold.

tanzanite-pendents

The cuts and corners are clearly carved. The details are clean, sharp yet subdued. It speaks clearly but not loudly across a crowded room. You stand out in style.

Somewhat the same as the aforementioned Tanzanite Blue BMW as you will note in the praising opinions of not only the car owner but the commenters at the end of the auto blog.  They seem to favor the TB (Tanzanite Blue) paint overcoat on the BMW.

bmw-tanzanite-blue-look

Image Source ” http://f80.bimmerpost.com/forums/showthread.php?t=1114590″

What is so special about the blue color and Tanzanite itself that appeals to both owners of fine jewelry and high-end motorcars? Perhaps it is the uniqueness of Tanzanite. It is mined in only one place in the entire world, a 20 square mile area in Northern Tanzania and when the digging ends, it ends. A gemstone, a car, no longer in production becomes a rarity, a collector’s item.

Tanzanite Gemstone

According to Geology.com: Tanzanite stands out in mall and chain store jewelry displays because most stones have a distinct hint of purple or violet in their color. People who have experience looking at gems and pay attention to color will quickly notice Tanzanite in a display case of blue gems.

tanzanite-love

Wouldn’t you want to be the owner of a  standout ring such as this 2ct Oval Tanzanite Gent’s Ring with .22ctw Diamonds in 14k White Gold to wear and pass down to a family member, knowing full well that its value and appreciation will only increase over the years?

tanzanite-men-rings

Consider how that ring would look on your finger, or that pendant around your neck as you drove the Tanzanite Blue BMW. The finer things in life begin as dreams before becoming a reality.

TopTanzanite jewelry is available on-line through our extensive, user-friendly catalog of rings, pendants, and earrings at  http://www.toptanzanite.com/.

Tanzanite stones

Treatment of Loose Stones

 

Zoisite Tanzanite Rough Stone

A relatively recent addition to the gemstone market, tanzanite’s limited origin and brilliant blue color has helped it climb the jewel market ladder with great speed. A stone so much rarer than even diamonds, tanzanite in the past decade has owned the position of the second most loved colored gem in the United States, preceded only by sapphire.

Marking Tanzanite
What few people are fully aware of, is the fact that when rough tanzanite is mined from the foothill of Mt. Kilimanjaro, more often than not it doesn’t look at all as it does in the market. Instead freshly mined rough tanzanite loose stones are a dull yellow-brown in color, and it takes skill to even differentiate it from the base rock at times.

If you’ve been scouting the market to buy tanzanite stones, you should have a decent idea of the treatments it goes through. Loose tanzanite gem stones are the hardest to sell as they have no embellishments masking its flaws, so often jewelers tend to overcompensate for these by excessively treating the rough stone – increasing its outer beauty but degrading the value and quality.

Once mined, rough tanzanite stones are heated to approximately 500 degrees (sometimes even more depending on the quality of the stone) in crucibles. This treatment causes changes in the crystal, and once the treatment is complete and the gem is taken out and cooled, its changed properties are retained permanently. Depending on the degree of heat it bears, its color intensifies – changing it from the dull brown to a permanent blue (ranging between pale sky blue, rich cobalt and violet).

Bruting Tanzanite
This treatment can also be done once the rough stone is faceted – that is once it has been cut to the desired shape and its outer planes have been angled ideally to maximize refraction (hence its sparkle).

Treatments impact the color to a great degree, but not all tanzanite gems are blue. Heat treatment doesn’t change the color of the rough stone, it only brings out and intensifies the already existing shade. Hues range from blues to violets to red-purple, some even with tints of grey, brown and green. Even so, the most valuable still remains the deep blue ones.

Tanzanite is originally a form of zoisite – chemical composition and all. Its name is specific to this crystalline form, which means that its properties are the same as that of zoisite – originally a rock that is brown, pink or grey in color.

Polish Tanzanite
Of course, don’t be fooled, tanzanite loose stones do come out of the ground in their original blue shade as well; having been naturally heated inside the earth by the temperatures of Mt. Kilimanjaro – a volcanic mass in itself. It just so happens that even though naturally blue tanzanite is most valuable, treated tanzanite has been accepted by the market as the next best option.

Blue Tanzanite
Lastly, while heat treatment is accepted, there are other measures taken by jewelers and distributers to enhance the color and shine of the tanzanite. When heated, tanzanite crystals tend to ‘crackle’, which is every miner’s nightmare as it loses its value. Hence they use other techniques – such as coating the gem with cobalt and the like. If you’re shopping for loose stones, keep a check on quality and make sure you get a certificate of authenticity.