What was the last thing you bought at a flea market?
A woman in London, England paid $15 for a costume jewelry ring at a flea market about 30 years ago. She liked how it looked, so she wore it all the time.
But earlier this year, a jeweler saw it and told her she should have it appraised because it looked real. So she took it to Sotheby's, they checked it out . . . and, yeah, it turned out to be an actual diamond ring.
The "costume jewel" was actually a 26.67-carat diamond that's worth approximately $450,000.