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

After careful consideration, we rounded up the best places to buy engagement rings: Our top pick overall is Blue Nile, which pairs an impressive diamond selection with first-rate customer service.

He popped the question with an 8.5-carat blue diamond ... Is Dazzled by Her Engagement Ring from Tom Holland — Watch Her Play with the New Sparkler! Charli xcx Reveals the Real Reason She's ...