The dark violet-blue gemstones, each about the size of a forearm, were discovered by Laizer in one of the tanzanite mines in Manyara, northern region of Tanzania. The area is surrounded by a wall ...

Saniniu Laizer (pictured), a polygamist with four wives and father of 30, found the third gem that weighed 6.3kg in one of the tanzanite mines in Manyara, northern Tanzania. The rare gemstone is ...

According to the Geological Institute of America, the stone was first identified in 1967 in Tanzania − hence Tanzanite's name. The gem is only mined in the Merelani Hills of northern Tanzania.