Packer is the son of the media mogul Kerry Packer and his philanthropist wife, Ros. James Packer inherited control of the family company, Consolidated Press Holdings Limited, with investments in Crown Resorts, Zhaopin Pty Ltd and other companies.
David Allen, Creative Director 77Diamonds, had this to say: 'This emerald cut diamond engagement ring looks to be around 30 carats and given Mariah’s penchant for perfection it will no doubt be of the top colour and clarity quality.
Another source told Us that Packer, who runs Rat Pac Entertainment with Carey's pal Brett Ratner, has been interested in the mother of two for quite some time.
"James was interested in Mariah right when he heard she had split from Nick," the second insider told Us of her split from Cannon in August 2014.
Mimi got all dressed up to debut her diamond, wearing a black wrap dress with a huge embellished detail on one side, which she teamed with a pair of crystal encrusted high heels.
That hint of red sole is a giveaway that they're by Christian Louboutin, and we love the PVC panel running right the way around the inside.