Creative hand made fine jewellery at chordia jewels

1
Tanzanite Facts

• Tanzanite was first discovered in 1967 in
  Tanzania.
• It is a rich blue variety of Zoisite.
• Tanzanite is only mined in Tanzania.
• The largest rough tanzanite was found in 2020.
• The largest carved tanzanite is named Lheure
  Bleu.
• Tanzanite is a birthstone for December.
• The gemstone is believed to inspire calmness,
  compassion, and new life.
• Tanzanite is rarer than diamonds.
• There are many theories as to who first
  discovered tanzanite.
• Tanzanite has a trichroism which makes it
  unusual.

2
How To Choose The Best Tanzanite

• One can choose the best tanzanite by using
  the 5 Cs criteria.
• 5 Cs are
• Color
• Clarity
• Cut
• Weight
• Confidence

3
Which Color

• Tanzanite is unique in that it changes colors
  depending on the light.
• Its bluer under fluorescent light and more
  violet under incandescent light, and you can also
  see shades of red and brown in it.
• A high-quality tanzanite stone should be deep
  blue/dark violet.
• Stones that have a light color are considered low
  quality.
• You should keep in mind that the color of almost
  all tanzanite available is a result of heat
  treatment.
• This is why it is not recommended to clean this
  stone with ultrasonic or steam cleaners.

4
Clarity

• Tanzanite can be flawless or it can be heavily
  included.
• Its quality and value is profoundly affected by
  its clarity grade.
• Hence, it is very important to understand the
  different terms in use in the industry and which
  inclusions you may find in Tanzanite.
• The image above shows a common inclusions found
  in the gem type - a "fingerprint" liquid
  inclusion.
• Generally speaking, Tanzanite needs to be
  flawless to be considered top grade as it is
  classed as a Type 1 gemstone by the GIA. 

5
Tanzanite Cut

• Whereas the actual shape of a Tanzanite has
  little impact on its value, the quality of the
  cut itself is very important.
• It is an area which is often overlooked in this
  age of catalog websites which sell huge
  quantities of medium grades cut in the cutting
  houses of India.
• These cutting houses generally use a myriad of
  weight saving techniques when cutting which can
  increase the finished weight of a Tanzanite by up
  to 30.
• This means the actual hidden cost of a Tanzanite
  can be vastly greater than you realize.

6
Tanzanite Weight

• This is the last of the 4 Cs and the one with
  the least impact on quality.
• A carat is a unit of weight measurement and is in
  fact 1/5 of a gram.
• Carat weight becomes important within quality
  brackets.
• A 3 carat exceptional, investment grade color
  with top clarity will of course always be much
  rarer and more valuable than a 10 carat B grade
  color containing inclusions.
• Some gem minerals are very dense like Sapphire
  and Ruby and others are not, like Diamond and
  Aquamarine.
• To judge the size of a stone, always use the
  dimensions, particularly the face up dimensions
  to judge size.
• We include a useful Gem Dimension Chart on all
  our gem pages to help with this.

7
Confidance

• The fifth C refers to confidence. Tanzanite which
  is certified by the mark of rarity tag by the
  Tanzanite Foundation is your guarantee of ethical
  and socially responsible gemstone sourcing.
• This mark can only be distributed by the
  Tanzanite Foundation, formed by the tanzanite
  one-the worlds largest mines of Tanzanite

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Tanzanite is a birthstone for

• Tanzanite was a birthstone for December by the
  American Gem Trade Association in 2002It was the
  first alteration made to the list since 1912.
  This Emphasizes how new tanzanite is with the
  gemstone industry.

9
Variation of Tanzanite

• The mineral zoisite naturally occurs in a wide
  range of colors that include colorless, gray,
  yellow, brown, pink, green, blue, and violet.
• The name "tanzanite" is used for a color variety
  of zoisite that ranges from blue, through violet,
  to violetish purple.

10
BONDI BLUE TANZANITE

• Bondi blue tanzanite is one of the rarest
  varieties of this treasured gemstone with mixed
  shades of blue and green.
• Tanzanite's incredible rarity and beauty have
  skyrocketed it to the highest ranks of the
  gemstone kingdom.
• Named after the sea-blue color seen on the
  beautiful Bondi Beach in Australia this exotic
  gemstone displays the revered deep blues of
  tanzanite tinged with rich green.
• It exhibits a strong amount of pleochroism
  meaning that it appears different colors when
  viewed from different angles.

11
Tanzanite Manufacturing Process

• 1. Rough Tanzanite From Zoisite Mineral
• In its Rough form, tanzanite is extracted from
  blue zoisite mineral. This mineral occurs in only
  one country in all world- Tanzania, in the
  foothills of Mt Kilimanjaro.
• 2. Planning Marking Tanzanite
• The most crucial task in the creation of the
  perfect Tanzanite gemstone, this is where
  tanzanite nurtured at the hands of a skilled
  craftsman or a jeweler. The professional plans
  and decides, in consultation with the concerned
  owners, the cut, weight and carat of a precious
  gemstone. Tanzanite will then determine its
  market value. 
• 3. Making Of Pre-Form
• Making of Pre-form is a simple process by which a
  rough tanzanite divided into desired marked
  pieces. This marking is the done perpendicularly
  or against the planes that the tanzanite rough
  needs to be the sawn i.e. 'cut.
• 4. Bruting
• In the process of Bruting, Tanzanites girdle is
  formed. It is called rounding. The girdle is the
  surface which created around the thickest part of
  the stone.
• 5. Polishing
• This step makes the tanzanite into a Faceted
  pieces. The last steps in the manufacturing
  process of the tanzanite from where on it goes to
  the grading department.

12
Story

• Tanzanite is the blue and violet variety of the
  mineral zoisite, caused by small amounts
  of vanadium.  
• Tanzanite belongs to the epidote mineral group.
• Tanzanite is only found in Tanzania, in a very
  small mining area near the Mererani Hills.
• Tanzanite is noted for its remarkably
  strong trichrorism, appearing alternately blue,
  violet and burgundy depending on crystal orientati
  on.
• Tanzanite can also appear differently when viewed
  under different lighting conditions.
• The blues appear more evident when subjected
  to fluorescent light and the violet hues can be
  seen readily when viewed under incandescent illumi
  nation.
• In its rough state tanzanite is colored a
  reddish brown to clear, and it requires heat
  treatment to remove the brownish "veil" and bring
  out the blue violet of the stone.
• The gemstone was given the name 'tanzanite'
  by Tiffany Co. after Tanzania, the country in
  which it was discovered.
• The scientific name of "blue-violet zoisite" was
  not thought to be sufficiently consumer friendly
  by Tiffany's marketing department, who introduced
  it to the market in 1968.
• In 2002, the American Gem Trade Association chose
  tanzanite as a December birthstone, the first
  change to their birthstone list since 1912.

13
Get In Touch

• Head Office
• 404, Siddha Jewels,
• Nathmalji Ka Katla,
• Agra Road Jaipur 302003, Rajasthan, India
• Contact No 91-141-4062734

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ThankYou

• www.chordiajewels.com