It’s commonly believed that gold is one of the rarest and most expensive precious metals – but while it does rank pretty high comparatively, there is one metal that has it beat hands down both ...

Gold is one of the most valuable and expensive metals in the world, and its price can fluctuate greatly. The question is, why is gold so expensive? Several factors contribute to gold's high price tag.

You must have heard people say that diamonds' values can reduce over time, but gold's value always remains ... Californium is the most expensive metal, valued at around $750 million per ounce.

Sometimes, money does grow on trees. A German gold merchant appears to have produced one of the most expensive Christmas trees ever, crafting a specimen out of $5.5 million worth of bullion — pr ...