From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity ...

Prince William is opting for a low-key day in the UK to celebrate Princess Kate's 43rd birthday, rather than heading to ...

Kate Middleton is celebrating her 43rd birthday by putting herself first. Less than one year after revealing her cancer ...

Kate could also be seen wearing her sapphire and diamond engagement ring, which used to belong to William's late mother, ...

Prince William penned a touching note to “incredible” Kate Middleton Thursday to celebrate her 43rd birthday, her first after ...

Prince William made a rare declaration to Kate Middleton on Instagram to celebrate her 43rd birthday, writing a sweet message in her honor.

GB News Royal Correspondent Cameron Walker has urged the public to "cut William and Kate some slack" after the Prince of ...

Kate Middleton dressed down in jeans and a blazer in Prince William's 43rd birthday tribute to her, posted on Instagram. See her outfit here.

William, the future King, shared a striking new photo of his wife in honour of her birthday - and, according to an expert, ...

Today is Kate Middleton's 43rd birthday. In honor of the occasion, Kensington Palace released a stunning photo of the princess and a beautiful message from Prince William that took my breath away.

Kate Middleton's 43rd birthday portrait was taken by Matt Porteous in Windsor Castle last summer. She is spending the day ...

Princess Kate celebrates her 43rd birthday on Thursday, and the mum-of-three is feeling very positive about the year ahead as ...