According to the Daily Mail, she was working a huge - and rare - 35-carat Burmese yellow sapphire and diamond ring worth £843,000 alone.
Then there was a pair of 15-carat canary yellow diamond drop earrings, too, worth a whopping £200,000.
The paper adds that she was so blinged up, she had to have a special bodyguard to protect her for the evening. Jel? Nooooo...
Cheryl looked stunning in her lime-green/yellow Matthew Williamson lace frock, which featured a pretty butterfly embellishment and was also worth not an insubstantial £1,295.
Her hair was curled and worn to the side, while make up was bronzed and beautiful.
Meanwhile, as well as keeping her remaining girl Lauren Platt in the show, there was more good news for Cheryl this weekend - as she became the first British female to celebrate five number one hit singles.
Her new single 'I Don't Care' knocked Ed Sheeran's 'Thinking Out Loud' off the top spot, making her the most successful British female solo artist.
'I Don't Care' is the second single from her fourth album, Only Human.
She took to Instagram after the X Factor to thank her fans, writing: "Thank you so much to everyone who has supported me!!! Today we made history