Man selling $33,800 Cartier engagement ring after catching his fiancée cheating on him with her former partner just ONE WEEK after they got engaged

A Sydney man is trying to sell a $33,000 Cartier engagement ring online after he discovered his fiancée was sleeping with her previous fiancé just a week after he proposed. The man said he has since met another woman and fallen in love but that his failed engagement is 'quite the story.' He is asking for someone to buy the new solitaire diamond ring with a diamond band for $28,800 - exactly $5,000 less than he bought it for in September.