The latest one is that the pair are to tie the knot at the exclusive Babington House in Somerset.
Set in 18 acres of rolling countryside, the estate owned by private members' club Soho House, says on it's website it was opened for people who wanted 'to enjoy the countryside but weren't prepared to compromise on urban luxuries.'
Perfect then for a society heiress to the Quality Street fortune and her rapper fiancé.
The swanky house has a library, snooker room, study, restaurant and also has indoor and outdoor pools, a gym, sauna, cinema, five tennis courts and a croquet lawn.
Being a Soho House property, it also boosts a Cowshed spa for Millie and her bridesmaids to get in a spot of pre wedding pampering.
The hotel seems to be a good choice to keep a bit of privacy to their big day, as weddings can take over the entire place (with guests having the run of it's 33 bedrooms) and with all that surrounding land - we're guessing it isn't too overlooked.
The pair have kept tight lipped about their wedding so far, but word on the street is it will be taking place some time in September, before Professor Green jets off on his world tour. His new bride will be going with him after it was confirmed that she quit Made in Chelsea.
But if Millie's Made In Chelsea now ex co-stars are getting excited by the idea of a weekend away in the countryside, then they can dream on - as Professor Green has said none of them are on the guest list.
Now that the venue's sorted, who has any guesses on the dress?
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