Is tanzanite heated?
All tanzanite is assumed to have been heated to relatively low temperatures. This process is complimentary to the natural process, placing the tanzanite in a more stable valance state and with no structural or chemical alteration evidenced between heated and unheated tanzanite. Tanzanite's color is natural and permanent.

Is tanzanite a precious gem?
Absolutely. Traditionally, a gem must share three important traits in order to be classified as precious: beauty, rarity and durability. Each trait however represents a range, so all gems can possess different levels of all three traits and often of far greater influence than either beauty or durability, is rarity. Tanzanite possesses both beauty and durability and is more than a thousand times rarer than a diamond. Tanzanite is precious in every sense of the word.

Is tanzanite a soft gem?
Tanzanite has a similar hardness to emeralds but is less brittle. It is recommended that tanzanite should not be worn during activities that inflict excessive wear. It is ideally set as a dress ring, necklace or earrings.

What is the color range of tanzanite?
Tanzanite varies in color from rich, velvety blue to an exotic violet. Tanzanite is classified as 'vB' denoting that the color is predominantly blue over violet or 'bV' denoting that the color is more violet over blue. The more intense the color, the rarer the tanzanite and hence the more expensive the price per carat.

How do I value tanzanite?
Tanzanite is graded according to the 4 C's, much like diamonds: Color, Cut, Clarity and Carat Weight. There is a 5th C which stands for Confidence. Being confident that your tanzanite is authentic, that it is of natural origin and that it has been expertly graded.

Will tanzanite be found in another part of the world?
Extensive geological research has proven that there is only one source and its geology is so unique, it is described as a 'geological phenomenon'.

Does any money go back to the Tanzanian people?
Yes, the Tanzanite Foundation is committed to making a real difference to the lives of the local community members at tanzanite's source by contributing to social and economic upliftment. Initiatives to date include a medi-clinic, a community centre, a school, infrastructural upgrades and the supply of fresh water and electricity to the drought-stricken communities.

What is the Mark of Rarity™?
The Mark of Rarity is the icon of the Tanzanite Foundation and stands for quality, rarity and distinction of your tanzanite purchase.

For more information please contact the Tanzanite Foundation at info@tanzanitefoundation.org