When
shopping for a tourmaline you should look for good color saturation with little or no
banding of color. All of the stones should be well cut and proportioned. And since they
wear very well, you can choose a tourmaline for any type of wear when considering your
jewelry wardrobe.
Many have turned the collecting of
Tourmalines into a lifetime hobby. It is the gemstone with the widest color
spectrum. In fact hundreds of different hues of tourmaline exist. Every
birthstone can be replaced by a tourmaline, since the birthstone is determined not by the
mineral itself but its color.
The most important tourmaline deposits
in Brazil are in the Cruzeiro Mine, 700 kilometers northwest of Rio De Janeiro, in the
State of Minas Gerais. It is owned and operated by Amsterdam Sauer. (a CGI
member Jeweler)
The name tourmaline is derived from
the Singhalese word "turamali" meaning gemstone. Verdelite is a composed word
from the Latin word "verde" =green and the Greek word "lithos"=stone.
Dutch sailors which brought tourmalines from Ceylon to Europe in the 17th century, called
them "aschntrekkers" because they attracted ashes and could be used to clean
pipes. The
reason is the physical property to change its electrical charge when heated, and to become
a polarised crystalline magnet which attracts light objects. Today we have fine colors of
green to bluish green Tourmaline from Brazil and Africa.
Paraiba Tourmaline
The intense "electric" color
of the Paraiba tourmaline has captured the interest of fine gem collectors
world-wide. Discovery of this gem was credited to Mr Hector Barbosa in 1987 near the
small village of San Jose de Batalha in the federal state of Paraiba, hence the
name. The original mine where it was discovered was extremely small, no larger than
the basic ranch style home, and was exhausted by 1993.
For that reason, gems in good quality
are becoming more and more expensive. The surprisingly "new" Tourmaline colors
are due to a small amount of copper but also a little bit of gold! Because of the rarity of this gem and the intense interest
especially in the Japanese market, a fine Paraiba Tourmaline can easily reach prices of
$20,000 or more per carat.
The best color is a vivid neon-blue or
an emerald green. Even heavy inclusions are accepted, as there are hardly any flawless
Paraiba Tourmalines of good color.
Before you shop for Tourmaline: Our best advice before buying fine tourmaline is to visit
several large and small jewelry stores before your trip to the Caribbean. Do
not tell them you are comparison shopping, but ask to see their selection of fine
tourmaline. Ask where it was mined. Notice the richness of the
hue, the setting, the size of the gem. Jot down a few notes along with prices
per carat etc. Take this knowledge with you on your trip to the
Caribbean. An informed consumer usually gets a really fine Jewelry
item. When you see the huge variety offered by CGI jewelers, their knowledge
of the gems, to knowing which mine they came from, you will be impressed.
While visiting Pierre's of St Thomas
in November, we were shown a fine blue Tourmaline which was a loose stone. The depth
of the color was dramatic. It was examined closely under the microscope by our
gemologist. I imagined how wonderful and unusual this would present as a ring set in
Platinum. Since that time I have made a special effort to find a stone of such
quality anywhere. I'm still looking. If you visit St Thomas, stop into
Pierre's and ask to look at the Blue Tourmaline examined by CGI, you'll see what I
mean.
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