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

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 ...

The Rare Gemstone Company has been a leading name in the rare gemstone industry for half a century, serving discerning clients with the most exquisite and rare gemstones. Founded in 1974 ...

The “gem” of an ammonite dates back 71 million years, and comes with a curious coating of ammolite, giving it a dazzling rainbow iridescence. “This extraordinary piece [weighs] 24 kilograms ...

Appealing to collectors of Earth's ancient treasures, Heritage Auctions is selling rare meteorites, fossils, and gemstones.

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 ...