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

Megan Fox's engagement to Brian Austin Green was marked by this three carat ring, set in a platinum diamond collar, and worth and estimated $80,000. Miley Cyrus was given a 3.5 carat ring by ...

Known for her impeccable fashion sense, Sonam Kapoor chose a unique engagement ring that stood out among her Bollywood peers.