Former Playboy Playmate Crystal Harris, who called off her wedding to the 85-year-old just days before the big day in June, has put her 3.39 carat diamond ring up for auction which will take place in October.

A description put on the auction house’s site is: A diamond ring. Set with a circular-cut diamond, weighing approximately 3.39 carats, to the circular-cut diamond hoop, mounted in platinum. In its listing, it was revealed that the sparkler is expected to sell somewhere in between $20K and $30K.

Crystal Harris got engaged to Hef on Christmas night, December 25, 2010, but five days before the big day she called off the wedding. On the reason behind the auction is that Crystal couldn’t bear to look at the ring anymore because it brought back bad memories.

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