Grace Kelly’s ‘family heirloom’ engagement ring was replaced with huge Cartier diamond

As for how it compares to Grace’s first ring, the ring with two family heirlooms is said to be valued at £15,000.

The following year, Grace Prince Rainier had two weddings; the first was a private civil ceremony for which Grace wore an embroidered light pink skirt suit and a Juliet cap.

The second wedding was a religious wedding that the whole world witnessed, and Grace’s dress is one of the most famous, most iconic wedding dresses ever which has gone on to inspire the likes of the Duchess of Cambridge and Lady Kitty Spencer’s dresses decades after.

Grace’s second wedding dress was designed by American costume designer Helen Rose and featured a high-neck, long-sleeved bodice and a long, billowing skirt with a 10-and-a-half-foot-long train.