Forbes contributors publish independent expert analyses and insights. I am the founder of La Patiala, the luxury encyclopedia. One of December’s birthstones — the other is turquoise — tanzanite is one ...

You might think that a species as gem-hungry as human beings would have mapped out all the major sources pretty early on, spreading their fame worldwide, like the Muzo emerald mines of Colombia or the ...

Have you ever wondered what the hardness of tanzanite is? But before that, let’s understand what a Tanzanite is. It’s a pretty blue-violet gem that belongs to the mineral group. Think about strolling ...