The world's rarest gemstone is made of kyawthuite ... Investigations revealed that it likely formed deep underground in a ...

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 ...

Unique in its kind, the rarest gemstone in the world is called kyawthuite. The unique specimen is currently housed in the Natural History Museum of Los Angeles County. Where it came from and its ...

Geologists think that was likely igneous in origin, an inclusion in a type of common volcanic rock called pegmatite ... The ...

Geologists think that was likely igneous in origin, an inclusion in a type of common volcanic rock ... The world's second-rarest gem, a mineral called painite, is valued at US$50,000 to $60,000 ...

Let's take the case of a pink diamond: Yet, its price index has beaten other luxury investments, such as gold or fine art, routinely. As supply runs low and demand is rising, a pink diamond is ...

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 ...

A 52-year-old Tanzanian small-scale miner, who became an overnight millionaire in June for selling two pieces of rare gemstones, has found another gem that’s valued for 4.7 billion Tanzania ...