In 1956 Grace made High Society with Crosby and Frank Sinatra and slept with them both. There were dozens more until she wed Prince Rainier of Monaco in the same year, 1956, and many more after as well.

Many celebrities made the trip to Monaco for the royal wedding, including Kelly’s former co-star Ava Gardner. Frank Sinatra is said to have initially accepted the wedding invitation, but that he later decided to stay home so that his fame would not take away from the royal couple on their wedding day.

With the wedding being attended by over 600 guests including famous faces such as Cary Grant, Ava Gardner, Gloria Swanson and Aristotle Onassis, and watched on live television by over 30 million people, the bridesmaids, chosen from Grace’s family and her most trusted friends, were undoubtedly nervous.

Rainier was said to be the utterly besotted with Grace from the moment he met her. However, Grace was dating French actor and war hero Jean-Pierre Aumont at the time, and was said to be polite but “stand-offish.” Eventually, Grace succumbed to Rainier’s charms and, after a brief courtship, they were engaged.

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Grace Kelly Net Worth

According to new documentary Grace Kelly: The Missing Millions, Kelly had to pay $2 million (approx £1.5 million) to the House of Grimaldi to marry Prince Rainier III of Monaco, which caused her to lose her entire acting fortune.

Grace Kelly’s wedding dress cost $65,200 when she married Prince Rainier III of Monaco in 1956, which would be $623,000 today. Designed by Helen Rose, Kelly’s dress used 400 total yards of ivory faille and silk net.

House of Grimaldi

Grace Kelly married Prince Rainier III of Monaco in 1956, and her dazzling $4million engagement ring has gone down in history as one of the world’s most expensive celebrity gems, however, the 10.4 carat Cartier jewel was not the first ring presented to Grace when her prince proposed!

Fun fact: Grace Kelly wore her real engagement ring in ‘High Society’ (1956), the second she received from her fiancé Prince Rainier III.

The Queen Mother The ring had diamond accents and was complemented by a Welsh gold wedding band. Eventually, she decided to swap out her engagement ring for a large pearl surrounded by diamonds.

According to the House of Garrard, though, Diana actually didn’t pick out the ring, despite reports that she personally selected it.

“The sapphire is a royal blue color of Ceylon (now known as Sri Lanka) origin. It cost £47,000 (or $60,000) at the time it was purchased.” Today, the ring is estimated to be worth about £300,000, or nearly $400,000.

Despite her divorce from Prince Charles, Diana never stopped wearing her engagement ring. Upon her death in 1997, it was placed in the care of the royal family, where it remained until it landed on Kate Middleton’s, now the Duchess of Cambridge, finger in 2010, when Prince William proposed.