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 ...

The Most Expensive Axinite in the World While ... The fire opal is rarer than other types of opal, especially in gem-quality ...

High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. Over 90% of black opals come from Australia, but they aren't easy to find.

Amazon may be the online destination for affordably priced groceries, clothes, decor, and practically anything you can think ...

"Wet sifting is one of the most effective methods to search for diamonds ... This spot in Denio offers travelers the chance to mine or their own opals. For those who are new to digging, staff ...

You learn how difficult it is to retrieve the material and why many gemstones of top quality are so expensive ... and most valuable in the world. In Mexico, Participants will visit opal mines ...

But adoption fees can be more than $5000 for some breeds, making them the most expensive dog breeds. There are currently about 200 AKC-recognized breeds of dogs in every size, color, and coat ...

The limited-edition silhouette, which is slated to launch at a random time on October 31, features holographic jelly overlays ...

The Senate races are among the most expensive, all ranking within the top ten according to figures from OpenSecrets. Here are the Senate races ranked from the most to least expensive. The figures ...

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 ...