Upon arriving back on US soil, the loved-up pair went to get Baldwin's engagement ring (which was inspired by Blake Lively's) resized when she reportedly bought her new fiancee a ring of his own.
According to The Blast, at New York's Pristine Jewelers Baldwin gifted Bieber a diamond band engraved with the letters 'JB', buying a matching one for herself which reads 'Baby.'
Bieber also reportedly purchased a 33-carat Patek Philippe watch for himself, because why not?
Despite getting engaged only a few days ago, according to Us Weekly, wedding planning has already begun.
"They want something private, intimate,” a source said, noting that the event will likely be "very small."
Of course, there's no doubt that the nuptials will be filled with famous faces: Baldwin counts Bella Hadid, Kendall Jenner and Kylie Jenner among her best friends and Bieber is close with many in the music scene, including Usher and Soulja Boy.
As for where they'll tie the knot? "Justin loves Canada and is at home there. It’s a special place for him and he’d love to get married there," the insider revealed.