From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that ...

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 ...

Crystals are admired for their beauty and healing properties. Rare stones like Blue Diamond, Pink Star Diamond, and Jadeite ...

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.

Celebrity engagement rings continue to fascinate fans by the sheer size and cost of these tokens of love. But who's worn the most expensive?

Neither Princess Diana or Meghan Markle own the the most expensive royal engagement ring. Someone outside the House of ...

Coming in with the third-most expensive royal ring is the Duchess of Sussex, whose three-stone diamond style is worth £150,000 ($193,000) or more, according to the jewelry expert. Like the ...