Shanna Moakler’s Travis Barker engagement ring is being auctioned.

The former Playboy model is selling her 4-carat diamond ring and will start the bidding at $51 (€47.5) because she is ready to leave that chapter of her life behind.

“I think it’s a beautiful piece and it really was my dream ring,” the Celebrity Big Brother star told Us Weekly in a statement.

“However, that chapter of my life is over and although holding it at one time brought me great joy, I hope it will find a new home and continue to bring someone as much happiness as it once did for me. It is truly an iconic ring!” she said.

Moakler is auctioning off the stunning 4,01 carat round-cut Cartier jewel – at Worthy.com.

The auction begins on Friday, May 27 and runs until Tuesday, May 31, but may be extended depending on the level of interest.

“I hope it will be sold for 120 thousand dollars (111 thousand euros). It was worth about 160 thousand dollars (149 thousand euros)”, said Moakler.

Despite the timing of the auction – the Blink-182 rocker recently married Kourtney Kardashian in Italy – Moakler insisted the sale has nothing to do with her ex-husband marrying another woman.

“I’m sure people would assume it’s wedding related, but I just wanted to find the right vendor and Worthy.com is the most professional and I know will give this piece the attention it deserves,” she explained.

Moakler and Barker got engaged at Disneyland’s Haunted Mansion and married in 2004.

Barker filed for divorce two years later, but the pair reconciled twice before finalizing their split in 2008.

The former couple have son Landon, 18, and daughter Alabama, 16.