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 ...