Princess Kate's sapphire engagement ring has made a stunning reappearance. The Princess of Wales is celebrating her 43rd birthday today, and her husband Prince William took to social media to share a brand new photograph.

Kate Middleton is 43! The Princess of Wales is celebrating her birthday surrounded by those nearest and dearest to her on Thursday, The Post can reveal. While Princess Catherine has spent much of her time at Sandringham Estate in Norfolk,

Prince William is celebrating his love and admiration for Kate Middleton as she marks her 43rd birthday. In a message posted to the couple's social media, William, 42, paid tribute to Kate after a year in which she had a major operation,

Kate Middleton is celebrating her 43rd birthday today (January 9), and her family just dropped a new glamorous pic of her on their official Instagram account—with a sweet personal message from Prince William.