In the Rania's Instagram Reel, a photo of Princess Iman wearing the Diamond Tiara was included, sparking speculation she could wear it on her wedding day. Queen Rania has worn it three times before, including to a State Banquet at Windsor Castle in 2001. Iman is the first of her four siblings to marry—her older brother, Crown Prince Al Hussein bin Abdullah II will marry Rajwa Al-Saif in June.He posted a photo of himself with the happy couple to his Instagram, writing "Warmest congratulations to my dear sister Iman and to her fiancé Jameel on their engagement. I wish you a lifetime of happiness together."