Tanzanite is only found in northern Tanzania and is used to make ornaments. It is one of the rarest gemstones on Earth, and one local geologist estimates its supply may be entirely depleted within ...

A Tanzanian small-scale miner, who became an overnight millionaire in June for selling two rough Tanzanite stones valued at $3.4m (£2.6m), has sold another gem for $2m. The third discovery by ...

Each month has at least one gemstone; others have more. Here's what know about December's birthstones. December has three birthstones: tanzanite, turquoise and zircon. Of the three, tanzanite is ...

Due to the extremely limited ore body, extraction of tanzanite is only expected to continue for another twenty years, leading to it being called the ‘gemstone of a generation’. Since its ...