Beneath the surface of the rich African soil lie the most sought-after treasures and gems known to man.


Tanzanite was created millions of years ago by a tectonic shift which also created Mount Kilimanjaro and The Great Rift Valley of Tanzania. This unique geological phenomenon that lead to the creation of tanzanite reportedly has less than a million to one chance of being repeated and, according to geological tests, the world’s supply of tanzanite will completely run out within a few short decades.

Tanzanite is only found in Simanjiro District of Manyara Region in Tanzania, in a very small mining area approximately 7 km long and 2 km wide near the Mererani Hills

The mineral is located in a relatively complex geological environment.

To add to the difficulties in mining, the Tanzanian government temporarily closed the largest tanzanite mine in 2019 due to a breach of laws and have ordered a wall to be built around the mine – meaning each gemstone will have to pass strict security measures before leaving the mine.

The Tanzanian government want the people of Tanzania to be the first to benefit from the precious stone found beneath their soil.

In 1967, on the foothills of the magnificent Mount Kilimanjaro, the most Eastern reaches of Africa, Tanzania, the indigenous Masai tribe uncovered the rare gem – tanzanite. The only tanzanite mine in the world.

The Diamond Works celebrates tanzanite’s African heritage and true beauty with its captivating narrative of discovery by the native Masai people of Tanzania, to the alluring deep blues and violets this stone presents itself in, tanzanite is truly the essence of Africa.

The geological discovery of tanzanite has been described as a geological phenomenon, giving rise to tanzanite’s unparalleled scarcity. A gem so rare it is limited to a single generation.

Created by a tectonic shift
Million Years Ago

First found in


Total Tanzanite Reserves (Kg)


Largest ever found


In appreciation of this captivating gem, The Diamond Works tells the historic tale of tanzanite, showcasing a first-hand cutting and polishing demonstration and wide range of the most elegant tanzanite jewellery pieces – offering the opportunity to take home a piece of rare African beauty.

The Sparkling Tour

Explore the world of Tanzanite in person with a complimentary museum and showroom tour. Book now for a personal experience.