At a dinner henna party last week, Rania said Rajwa was "the perfect answer to all [her] prayers."
The engagement took place in August with a family gathering at Rajwa's home in Saudi Arabia.
Since 2017, Hussein has been appearing more intensely on the international stage and accompanied his father on the majority of his official engagements. He is named after his grandfather, who died in 1999, but remains popular and respected in the Hashemite Kingdom.