Buckingham Palace has confirmed when Queen Camilla will next don a tiara as the Queen and her husband, King Charles, are due to host the Emir of Qatar, His Highness Sheikh Tamim bin Hamad Al Thani.
The Emir is also due to be joined by his wife, Her Highness Sheikha Jawaher bint Hamad bin Suhaim Al Thani, when the royal couple pay a visit to the country from 3rd to 4th December. The duo will be paying a state visit to the United Kingdom after accepting the offer, which was extended by the monarch.
It is highly likely that during their trip to the United Kingdom, the King and Queen will host a State Banquet for their royal guests, like they did when the Japanese Emperor and Empress visited earlier in the year.
HELLO!'s online royal correspondent, Danielle Stacey previously explained: "Tiaras are usually reserved for state banquets, the Queen's annual Diplomatic Corps reception and for Her Majesty, the State Opening of Parliament."
Details about the Emir's itinerary will be announced in due course.
The Emir and his consort have paid eight visits to the United Kingdom during his reign, which began in 2013. The couple's most recent visit was during the King's coronation last year.
Charles has visited the country eight times, all while he was the Prince of Wales, and Camilla has joined him on two of these trips, once in 2007 and the second in 2013.
Camilla was last seen wearing a tiara during Emperor Naruhito and Empress Masako's state visit in June. During the State Banquet, the royal was seen wearing a cream silk crepe embroidered dress by Fiona Clare, alongside the Burmese ruby and diamond tiara.
Camilla also debuted the King's family order, a tradition that sees female royals wearing a picture of the monarch, which dates back to the time of King George IV.
Masako also wore her own tiara for the event, the Chrysanthemum tiara.
It's currently unclear whether the Princess of Wales will be at the event and therefore wear her own tiara. The royal has been undertaking a light programme of public engagements since she announced she had completed chemotherapy in a video message update released on 9 September.
Kate is reportedly hoping to join the royal family at the Cenotaph on Remembrance Sunday next month.