First comes love, then comes marriage, then comes lawsuit… and that includes suing your former fiance for the engagement ring.

Former Houston Texans star Mario Williams who now plays for the Buffalo Bills but it seems there’s a decent chunk of change still in Houston – a $785,000 engagement ring.

Williams, it would seem, wants the ring back. He has filed a lawsuit against Erin Marzouki, who was Williams’ former fiancée.

Happier times: Buffalo Bills’ Mario Williams poses for a photo with his fiancee Erin Marzouki just after signing a contract touted as the richest ever given to an NFL defensive player

Bring that bling: Mario Williams has gone on the offensive – he wants the 10-carat $785,000 diamond engagement ring he gave to Erin Marzouki, his former fiancée, back

The suit seeks recovery of a stunning 10.04 carat diamond ring from Marzouki after she decided to end her engagement with Williams in January.

According to court documents, ‘During the parties’ relationship, on or about December 12, 2011, plaintiff purchased a $785,000 diamond engagement ring from Valobra Master Jewelers,’ the complaint states.

‘(Marzouki) never intended to marry (Williams) and used the relationship as a means to get to (Williams’) money and acquire gifts,’ says the lawsuit, filed by Houston attorneys Monica Schulz Orlando and Michael Gary Orlando.

The lawyers are asking the court to obtain the ring from Ms. Marzouki until the legal action is resolved.attorneys are asking the court to obtain the ring from Marzouki and to hold it until the legal action is resolved.

Breakup: Mario Williams, 28, is suing Erin Marzouki, 31, in a civil lawsuit for the return of her $785,000 engagement ring after the couple split up

Bling: The ring is a GIA certified radiant cut diamond weighing 10.04 carats, E color grade and VS2 clarity grade worth $785,000

Williams gave the engagement ring to Marzouki on February 19th 2012 along with an American Express card to which she charged $108,000 during 2012 and ‘additional luxurious items’ valued at about $230,000.

But it was all over within a year with when Marzouki ‘unilaterally terminated’ the engagement on January 21st 2013.

The court documents says Williams ex-fiance ‘never intended to marry and used the relationship as a means to get money and acquire gifts.’

The lawsuit exudes Williams’ bitterness over the failed relationship and states that Williams has refused requests to return the diamond engagement ring..

Rich: Wiilliams signed six-year deal with the Buffalo Bills in 2012, worth up to $100 million, with $50 million guaranteed

Lawsuit: Court documents show Erin Marzouki, 31, called off the relationship after less than a year

In one year he claims he spent $1,123,000 on a fiancée who broke up with him just months after they’d become engaged.

Williams’ lawyers are now looking to take out a restraining order that would prevent Marzouki from selling or damaging the ring or keeping any proceeds by selling it.