Jewelers are shunning pricey gold and embracing cheaper metals like tungsten, cobalt ... because they're thinking about passing down these rings for generations." Don't tell that to Kyle Marie ...

Over the weekend there's been some rather breathless speculation about how a gold bar has been found, one that has been drilled out and filled with tungsten. Given that I'm actually in the metals ...

In March, certain corners of the Internet exploded when a one-kilo gold bar was allegedly found to have been "salted" with Tungsten, a metal with a similar weight but far less valuable.