When you think of expensive gemstones, what comes to mind? Most people think of the Big Four: diamonds, emeralds, rubies and sapphires. However, it might surprise you to know that there are ...

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 ...

Throughout history, the richest people have owned or gifted their loved ones with extravagant rings, including the rarest gemstones. Here’s a look at some of the most expensive rings in the ...

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.

But it also spawned a few rare iterations. Scarcity is usually dictated ... The base Barracuda is the most common with 1,387 examples made, while the Gran Coupe trim saw only 566 units roll ...