Camilla and Catherine Display Royal Heirloom Jewelry in Windsor

Historic royal jewelry featured prominently in Windsor on October 20, 2026, as King Charles III and senior members of the British royal family welcomed Sultan Haitham bin Tarik of Oman for an official state visit. Queen Camilla wore a ruby-and-diamond heirloom commissioned by the Queen Mother, while Catherine, Princess of Wales, selected a historic brooch featuring emeralds and diamonds for the ceremony. According to The Court Jeweller, the welcome ceremony took place at Windsor Castle after Prince William greeted the sultan at Nuffield Lodge, his private residence in Regent's Park, London.

The occasion marked the first official state visit to Britain by a sultan of Oman since 1982. Camilla chose a red coat with a matching hat and black accessories, incorporating one of the royal family's historic pieces into her outfit. Her floral brooch came from a pair of clips commissioned from Cartier by Queen Elizabeth the Queen Mother in the 1940s and set with rubies and diamonds.

The Queen Mother wore the brooches together on some occasions and separately on others. After inheriting the jewels from her mother in 2002, Queen Elizabeth II also wore them occasionally, including one of the clips for a Westminster Abbey service marking her diamond wedding anniversary in 2007.

The Court Jeweller noted that Camilla's appearance with the brooch may have been its first public outing on the queen. The publication also reported that the jewels were displayed in 2025 at a major Cartier exhibition at London's Victoria and Albert Museum after King Charles loaned royal pieces for the exhibition. Catherine complemented Oman's national colors in a dark green Alexander McQueen coat dress, a lace blouse, and a matching hat. She pinned Queen Alexandra's Three Feathers Brooch to her coat, continuing a tradition associated with generations of Princesses of Wales.

The brooch was presented to Alexandra as a wedding gift in 1863 by the Ladies of North Wales, a committee of women who raised funds through public subscriptions to purchase it from Garrard. The jewel features diamonds, rubies, and emeralds, and its gold was mined in Merionethshire, according to The Court Jeweller. The brooch later became associated with Diana, Princess of Wales, who wore it as a pendant during the royal tour of Australia in 1983, without its emerald drop. Camilla also wore the piece occasionally before Catherine began wearing it exclusively in 2022.

Catherine added new earrings by jewelry designer Cassandra Goad. Inspired by acai berries, the earrings feature yellow gold, chrome diopside, and diamonds. Camilla's evening attire provided a second display of royal jewelry during the state visit.

According to Town & Country, she wore the Girls of Great Britain and Ireland tiara with a royal blue gown and a two-strand necklace at the state banquet honoring the sultan. The diamond tiara was given to King Charles III's mother, Queen Elizabeth II, as a wedding present by her grandmother, Queen Mary. Originally purchased from Garrard in 1893, the piece features a fleur-de-lis design in silver and gold and was altered during Elizabeth's reign to include a bandeau base.

Camilla previously wore the tiara at a Buckingham Palace reception for the Diplomatic Corps in 2023. She had also accompanied Charles on his visit to Oman in 2016, when she held the title Duchess of Cornwall.

Sultan Haitham's visit followed his predecessor Sultan Qaboos bin Said's 1982 state visit, when Queen Elizabeth II hosted the Omani ruler. Haitham has also visited Britain privately, including a meeting with Charles for tea at Windsor Castle in 2025, according to Town & Country.