Mariah Carey and billionaire James Packer broke the record for most expensive celebrity engagement ring in 2016 with a whopping 35-carat, emerald-cut diamond.
Purchased by British jeweler Laurence Graff in 2010, this emerald-cut gem ... places it among the world’s most valuable rings. The Bleu Royal is another most expensive ring in the world.
The singer secretly tied the knot with director Taika Waititi last year, and she told Jimmy she helped him pick out this emerald ring ... "The absolutely most wonderful man, you handle nonsense ...