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.

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.. Like the ...

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.

The Duchess of Sussex’s three-stone diamond sparkler is the most-searched celebrity engagement ring in the world, according to a new study from U.K. jeweler Ramsden’s Jewellery.

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. Advertisement ...