Can you keep a diamond you found?

Hello, I'm curious about a legal question related to property rights. Let's say you're out hiking in the wilderness and come across a diamond that's been exposed by erosion. Can you simply pick it up and keep it as your own? Or are there legal implications to consider? Are there any specific laws or regulations that govern the ownership of naturally occurring gems found in the wild? It seems like a straightforward question, but I'd like to know the ins and outs of the legal framework surrounding this situation. Can you please clarify?