including green, red, 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 ...

including green, red, 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 Lazier urged ...

Whether it's the captivating blue-green hues of turquoise or the regal splendor of tanzanite, these Sagittarius birthstones ...