Lil Durk and his soon-to-be Mrs. are living large on the heels of their mid-concert engagement, flying to Aspen for a little last-minute Christmas shopping ... at Louis Vuitton.
The couple was draped in designer clothing for their holiday shopping spree -- Lil Durk wore a blue Chanel jumpsuit, and his new fiancée, India Royale, had on Chanel earmuffs.
But, all that stuff was overshadowed, almost literally, by the new huge diamond on India's left hand!!!
The Colorado getaway comes right after the rapper got down on bended knee during his Saturday night performance in their hometown of Chicago.
He'd brought India, his longtime girlfriend, out on stage to pop the question -- saying, "You've been the realest to me ... Do you wanna be my wife?"
Of course, the crowd ate it up, and later India posted about the engagement -- "I said 'Yes.' #issafiancé".
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She was also sure to show off her new sparkling oval-shaped rock, and so did her jeweler. Can't blame 'em ... the thing is freakin' impressive!!!
India and Durk have been together since 2017, and they have a daughter, Willow, together.
We're not sure how ya follow up a gift like that ring, but based on their Aspen outing ... looks like Durk's gonna try like hell for Christmas!!!