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 ...

Diamonds come in all sorts of shapes, sizes, and colors but there is one fancy color that is the rarest of them all.

Not only is it the most expensive Ferrari ever auctioned ... Ohio collector Jim Jaeger, co-founder of Escort radars, kept this gem in his garage for nearly four decades before parting ways.

However, that did not deter a luxury beachfront hotel in Spain that unveiled what has been dubbed the "world's most expensive Christmas ... among other gems. The tree also included Art Deco ...

In fact, pink diamonds are among the rarest but most in demand gems in the global market ... Among the 10 most expensive diamonds ever sold in the world, pink diamonds account for half the ...

including the rarest gemstones. Oghenerume Progress Follow Here’s a look at some of the most expensive rings in the world, their unique features, and the stories behind them. 1. The Pink Star ...