The Gold Sheen Sapphire, recognized as the second-rarest gemstone in the world, is generating unprecedented excitement and ...

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 ...

Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...

It is one of the rarest gemstones on Earth ... believed to be the world's only source of Tanzanite. A year later, the government reported an increase in revenue in the mining sector and attributed ...

Alanna Magovern Regester laughed after being asked when she first attended a Tucson Gem and Mineral Show. “It was back when ...