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 ...
Alanna Magovern Regester laughed after being asked when she first attended a Tucson Gem and Mineral Show. “It was back when my mom was pregnant with me,” Regester said. “I ...