From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity ...

L ess than a day after Zendaya made the 2025 Golden Globes best-dressed list by debuting a 5-carat diamond engagement ring ...

Zendaya is keeping mum — but her ring tells a story, jewelry experts say.