Hefner ex puts ring up for auction

Crystal Harris has put her engagement ring from Hugh Hefner up for sale at Christie's auction house in New York.

The blonde beauty called off her marriage to the 85-year-old Playboy founder just days before it was due to take place in June, and has since listed her 3.39 carat circular-cut diamond with a guide price of between $20,000 and $30,000.