Here is a list of Top 10 Rarest Gemstones in the world.There exist 4,000 minerals and almost two hundred varieties of gemstones on earth.
We have never heard about most of these gemstones because of their rarity. The following are world’s unique, expensive and most valuable gemstones.
Tanzanite
Tanzanite is an exotic gemstone found in one location on earth near the hills of Merelani in northern Tanzania. It’s a recent discovery.
It found in 1967 by Manuel d’Souza. Tanzanite is a member of the mineral family Zoisite.
Grandidierite
Grandidierite discovered in Southern Madagascar in 1902. It’s almost impossible to find, and samples of Grandidierite have been found in locations around the world such as Sri Lanka and Namibia. Also, it’s one of the rarest gemstones on earth.
