Welcome to the fascinating world of the $1 billion marble quarry, where the world’s most expensive marble is extracted and transformed into a luxury commodity. In this exclusive video, we reveal the ...

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 ...

Some of these stones are found in just one or two places on Earth, while others are so scarce that fewer than a handful exist worldwide. The red diamond tops the list as the most expensive Diamond ...

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 ...

Found mostly in Sri Lanka and Tanzania, taaffeite is one of the rarest gemstones, with only a handful of gem-quality specimens available. It is priced at a remarkable $35,000 per ...

A single curling stone certified for the Olympics costs over $600. That makes a full set of 16 stones worth $9,600. Since 2006, every stone used in the Olympic Winter Games has come from Kays of ...

But this is true. The world’s most expensive stone is not diamond but the rarest mineral is kyavathuite and painite. According to information, minerals are found almost everywhere on earth.