One user wrote on X: “I see she’s wearing her big engagement ring again!”
Another one added: “And her beautiful sapphire engagement ring has made a return!”
A third one said: “I’m happy to see the sapphire ring!”
A fourth one commented: “Don’t forget her engagement ring!”
A fifth one chimed: “Catherine looks amazing as usual.”
A sixth one opined: “She looks stunning! Not just because of the outfit, but she exudes a self confidence that makes her look amazing!”
The glittering piece features a 12-carat Ceylon sapphire from Sri Lanka in a royal blue colour, with several experts dubbing it one of the most iconic engagement rings of all time.