Digital fashion editor at Harper’s Bazaar Amy de Klerk predicts the dress will be “white, sleeved and not too risqué – and she will also probably wear a tiara”.
She added: “It is quite likely Beatrice will choose either a British designer or a British brand for her big day, meaning both Mary Katrantzou and Roksanda could be key contenders.”
For her wedding, likely to take place in 2020, Beatrice will probably choose a headpiece from the Queen’s collections.
Since Eugenie passed on the York tiara, the bride-to-be may choose to wear this headpiece instead.
According to gemologist Grant Mobley, it’s estimated worth is at least $300,000 (£230,226).