Zendaya's 5-carat diamond ring is surely a stunner. But some may prefer the style in a smaller size, which is why this Olive ...

Or celebrity engagement ring fate? The jewelry worn by brides-to-be in the public eye has long impacted consumer behavior.

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