David Momoh may have walked away from Married At First Sight without a wife, but he's cashing in on the trappings of marriage. 

The 31-year-old former reality TV groom is selling the wedding ring he exchanged with bride Alissa Fay on the series earlier this year. 

The Brisbane-based e-commerce product manager has listed his gold band for sale online, asking for $2500. 

'Selling my MAFS wedding ring. This uniquely designed band is something out of the ordinary,' David wrote in his listing. 

'It has a brushed centre with polished vertical spaced facets and heavily bevelled edges. Made from solid gold, it has a flat inner surface for a comfortable fit.'

Further details explain that the ring is made of 9k yellow gold. 

The ring is no doubt an unhappy reminder of David's marriage to Adelaide-based nurse Alissa, 33.  

The pair had a dramatic split at Final Vows, with David storming off after verbally lashing his bride, who was left to say her own vows to an empty room.

Alissa has since moved on with Australian Ninja Warrior star Nathan Ryles. 

For those who watched the season from start to finish, David and Alissa were portrayed as one of the experiment's strongest couples, seemingly immune to the chaos that engulfed the rest.

But they fell apart at the last hurdle - partly due to reasons shown on screen, and also because of an unaired 'sexual mishap', the Daily Mail first reported on March 18.

Now that MAFS has finished airing and David and Alissa are 'officially' over, David has had a reported rebound romance with Crystal Diaz. 

Crystal was the woman David was paired with during the controversial 'Is the Grass Greener on the Other Side?' challenge.

What started as a casual catch-up between the two was labelled by the wider MAFS cast as a full-blown 'revenge hook-up' after Alissa got ahead of David by debuting a new boyfriend shortly after their on-air split.

Viewers will remember that during the 'Grass is Greener' challenge, David barely engaged Crystal, keeping things strictly polite and professional - at least on camera.

But it was a different story behind the scenes.

Insiders say that after filming wrapped, David and Crystal reconnected and have since been seen out together, looking far closer than two people with 'no chemistry'.

David has put his time on Married At First Sight behind him.   

Speaking candidly to Daily Mail after watching the series, David admitted the experience was confronting and nothing like he expected.

'It honestly felt like I was watching a Netflix series,' he said. 

'I didn't realise how anything came across. Everything was happening in the moment, so watching it back was a complete surprise.'