The Love Island star, 24, removed the £600K band following the boxer’s antics on a night out in Abu Dhabi, with controversial singer Chris Brown.
Yet despite the drama – which The Sun reported saw Molly plead with Tommy, also 24, to ditch his pals – the eye-catching band is back on her wedding finger.
The mum-of-one stepped out at a glam event in London last night with her jewellery her perfect accessory.
Molly donned a black bandeau gown with a corset top and wrap skirt.
She kept warm with a fur throw and accessorised with a designer handbag.
The stylish star, who has her own fake tan business Filter, pulled her blonde locks into a relaxed bun.
She finished off with perfectly-applied mascara and lip gloss but – despite her chic appearance – fans were more interested in the ring.
Molly posted the snap to her Instagram page with the words: “LBD season has officially started.”
One fan took to the comments section to write: “Anyone else zooming in on her finger,” as one replied: “She has it on I’m sure.”
Another added: “Yes she’s got it on.”
One then wrote: “Stunner always babe.”
A fan then concluded: “Oh. My. Gosh. Speechless is an understatement.”
On Wednesday we reported how Molly was spotted without her ring while filming an Instagram video.
She had been spotted without her eye-catching band numerous times after the boxer “partied with women” on holiday.
The sports champ was filmed dancing alongside rapper Chris Brown and interacting with an unknown female.
In the clip, the woman is seen grabbing Tommy’s face as they dance and he appears to move away.
Yet on his return from Abu Dhabi, where he was watching the Grand Prix, Tommy appeared to snub Molly by uploading a snap showing their daughter Bambi, ten months, and not her.
A source was first to tell us: “Molly has made no secret of the fact she doesn’t like it when Tommy parties too hard.
“This weekend has ended up being a real embarrassment to her. She was mortified when she kept getting tagged in videos while she was just trying to enjoy a festive weekend with Bambi.
“She has told Tommy it really has to stop now he’s a dad and has told him to ditch some of his pals, who she thinks are a bad influence.”
It was then claimed he had not yet returned to the family’s £3.5million mansion.
He has yet to comment on the video which surfaced over the weekend.
Tommy popped the question earlier this year with a romantic proposal, on a cliff top.