purple and blue. Its value is determined by rarity - the finer the colour or clarity, the higher the price. Tanzanite can only be found in northern Tanzania Mr Laizer mined the stones, weighing 9 ...
Tanzanite is only found in ... The precious stone's appeal lies in its variety of hues, including green, red, purple and blue. Its value is determined by rarity - the finer the colour or clarity ...