Across the hills of Kenya and Tanzania, two gemstones capture the continent’s natural brilliance and enduring mystique: Tanzanite and Tsavorite. Both discovered within a few years of each other in the ...

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 ...

Most gems are found in several places in the world. Emeralds come from Colombia but also from Zimbabwe; there’s amethyst on almost every continent; and diamonds—although associated with Africa—are ...