The X Factor judge threw a bash in London for friends and family following her intimate 7 July wedding to JB in Mustique.
JB is said to have adorned the venue with hundreds of red roses in a show of love.
According to The Mirror, the 'Crazy Stupid Love' singer, 31, gave an "emotional" speech for the assembled guests at the "very small affair", which included her Girls Aloud bandmates Kimberley Walsh and Nicola Roberts.
"Cheryl told the guests how in love she was and Jean pulled out all the stops with hundreds of red roses," said a source, who also revealed Cheryl described JB as the love of her life.
Another insider said it was a "beautiful" and "low key" evening, adding: "The speech was absolutely fabulous. Cheryl spoke of her commitment to Jean and how much she cared for him."
Cheryl and JB's glamorous, black and white-themed party was held at The Library in St. Martin's Lane. Rochelle and Marvin Humes were also there, along with Cheryl's mum and brother, and friends of JB who flew in from Paris and New York.
Fans were stunned last week when Cheryl announced out of the blue that she'd wed JB on the Caribbean island of Mustique, just a few months after they began dating.
She then dropped 'Cole' from her Twitter and Instagram handles, suggesting she'll be taking JB's surname.
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Copyright: WENN Twitter @realbkbrown / Instagram @norman cook / E! Instagram @kimkardashian / Rex Features