The most expensive celebrity engagement rings will shock you. See which stars — including Kim Kardashian and Meghan Markle — come out on top.

According to the experts at Steven Stone, the monarch has the most expensive royal engagement ring, worth around $1.5 million. Advertisement. Advertisement. Advertisement. Advertisement.

The most expensive royal engagement ring belongs to Grace Kelly, the Hollywood actress who became Princess of Monaco. Kelly’s Cartier ring was given to her by Prince Rainier III in 1956.

Cardi B in a black dress with shiny pointy nails and wearing a large engagement ring. Elizabeth Taylor arguably knew more about being engaged than any other celebrity in Hollywood. The ...

Coming in with the third-most expensive royal ring is the Duchess of Sussex, whose three-stone diamond style is worth £150,000 ($193,000) or more, according to the jewelry expert.

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

Kate Middleton's unique 12-carat sapphire — surrounded by diamonds, no less — popped perfectly with her navy dress when the royal couple announced their engagement in 2010.. The $500,000 heirloom ...