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 ...
October has two birthstones: opal and tourmaline. Opal is the traditional birthstone for October. It is believed the stone was discovered in India and given the name "upala," or "precious stone ...
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 ...
Decorative glass is often made to capture the vivid color and intense sparkle of gemstones. It isn’t limited to transparent stones, either. A type of opaque matte glass called opal glass or opaline ...
Its symptom is a relentless pursuit of opal, which is Australia's national gemstone. For Mr Dunstan that moment happened at age 14 back in 1965 when he found his first opal. "It's a lifestyle for ...
An Antiques Roadshow married couple were stunned after discovering the true value of two pieces of jewellery, one which the husband thought was made of glass.