However, Kate Middleton is unlikely to wear a tiara this year ... which is for the Amir of Qatar, His Highness Sheikh Tamim bin Hamad Al Thani, and his wife, Her Highness Sheikha Jawaher bint ...

The queen, alongside King Charles, hosted Emir of Qatar Sheikh Tamim bin Hamad Al Thani, and his wife, Her Highness Sheikha ... dress and the diamond Kokoshnik tiara, according to The Telegraph.