Photos: Mariah Carey flashes a $500,000 diamond necklace gifted to her by billionaire fiancé James Packer

Mariah Carey put her famous figure on display in a plunging top paired with a tight leather trousers and a pair of lace up platforms heels, as she strutted around Beverly Hills wearing a $500k diamond necklace from Van Cleefs And Arpels, given to her by her billionaire fiancé James Packer. See more photos after the cut..