Collection stones are expensive because they are among the rarest
gems on earth. Tanzanite stones are only found in the Merelani Hills
of Tanzania. So it is very important to understand and appreciate
their value. Why you ask? Experts approximate that Tanzanite stones
will be extinct within the next 10 to 15 years.Tanzanite is about
1000 times rarer than a diamond. Hence, the demand for the precious
stone is only set to increase as the supplies lessen even more. It
is for these reasons that Tanzanite is an investment stone of
Don't take South Atlantic Auctions' word for it. See for yourself. The proof is in the
facts. Tanzanite's were first found in the late 1960's and called
Blue Zoisite. The name was changed from Blue
Zoisite to Tanzanite by Tiffany and Company. Because Tanzanite is a
trichroic gem, there are many colors. Very few stones are trichroic
and this is what makes the gem very easy to recognize. Trichroic
refers to three layers of color. The more common layers are blues
and purples but you may also see flashes of red, green, yellow,
orange, or brown. The color that gemologist predominantly speak of
is the "deep royal blue".
Keep in mind that most Tanzanite's
have a distinct shift in color with different types of lighting.
Here are a few tips for
purchasing a Tanzanite:
1. It is very important to clean the stone first. Dirt and
fingerprints hide its beautiful color and brilliance.
2. Inspect the stone face up against different backgrounds. If this
is the case, this stone is not desirable. Next, critique the stone
against a black backdrop.
3. Inspect the stone using both natural and synthetic light. Look at
it under dark lighting in shaded areas as well. It is important to
employ this due diligence.
4. Evaluate the side of the and look for what is called color
zoning. Upon review, if
the color is uneven, the value of the stone is minimal.
5. Be certain to inspect the stone with a 10X power loupe. This will
help you see the color depth in addition to any other imperfections
that may be in the stone.
Hues that vary from blue to violet blue are the most expensive. Many
people desire colors that look closer to a blue sapphire.
Tanzanite's that have a strong purple color and look like amethyst
stones are much less
to purchase. Be certain to always compare the price per carat when
pricing Tanzanite's. If you do not compare the price per carat, it
will be very hard to make a precise comparison.
Soak your Tanzanite in lukewarm soapy water using Dawn or another
liquid detergent. Rinse with water that is the same temperature and
dry with a paper towel or soft cloth. You can also use Windex, or
another window cleaner, but it is important to wipe immediately
Do not expose your Tanzanite stone to sudden changes of temperature.
Do not wear your Tanzanite stone when doing any type of physical
labor, or even gardening. And keep it stored in a soft cloth away
from other articles of jewelry.