The rarest gemstone in the world is considered to be ... which occurred in fact only in one place on Earth. It is worth noting that Myanmar is a site for many rare mineral discoveries.

Gemstone seekers in Chaung Gyi Village unearthed the tiny reddish-orange crystal, which later caught the eye of a gemologist.

Many said the rarity exceeds a thousand times more than diamond, Tanzanite is considered to be acclaimed as the "rarest gemstone in the world" title. Discovered in 1967, this gemstone is found ...

There's a mineral so rare that only one specimen of it has ever been found in the entire world. It's called kyawthuite ( cha-too-ite ), a tiny, tawny-hued grain weighing just a third of a gram (1.61 ...

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 ...

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 ...

Large crystals found in geodes and other rocks are relatively rare. Pink ChalcedonyA pink chalcedony shows off its beauty. Chalcedonies include many types of cryptocrystalline quartz gems and ...