Kris Humphries wants Kim Kardashian to give her engagement ring back.
The 27-year-old sports star - who was married to Kim for 72 days last year - cannot "fathom" why she would want to keep hold of the 20 carat diamond jewellery and is keen to have it returned to him.
A source told RadarOnline.com: "Kris wants the ring back because the marriage only lasted 72 days and he believes it was based on fraud and deceit.
"Remember, Kim filed for divorce. Kris paid for that ring, and he just can't fathom why Kim would want to keep it. It's not like she is ever going to wear it again.
"Kris realises that with Kim it's all about material objects and she truly treasures things over people in her life."
Kris also wants their divorce proceedings to be filmed, but Kim is said to be against the move.
Among the items his legal team want to discuss is a $325,000 white Ferrari gifted to the couple by a Malaysian businessman.
A source previously said: "Kris wants a divorce trial so that the truth can finally come out. Amongst other matters, he wants to know about the Ferrari that the couple got from a very wealthy Malaysian businessman that attended the wedding.
"Kris was at Kim's house when the car was delivered - it was given to both of them, but Kim has kept sole ownership and has used it extensively. She will be asked about it, under oath, on the stand at the trial."