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Prince William and Kate Middleton Reuters

Prince William and Kate Middleton will be celebrating their third wedding anniversary on April 29 and reportedly the royal has presented his wife a special gift.

Before their royal tour of New Zealand and Australia, Prince William gave Middleton an exquisite £3,600 Ballon Bleu de Cartier watch, reports Daily Mail.

The watch also has a sapphire stone embedded it, so it perfectly matches her engagement ring. "The ring and its sapphire stone has a very special meaning to Prince William, as it once belonged to his late mother, Princess Diana," states a Hollywood Life report.

Click here to see pictures.

According to The Christian Post, Diana also wore a Cartier watch and had one specially engraved for William as a birthday present, which he continues to wear till date.

Reportedly, Middleton wore her new watch every single day during the couple's royal tour. She was also spotted wearing a new ring on her finger during the tour – a diamond eternity band rumoured to be a present after Prince George's birth.

Meanwhile, post their royal visit down under, the family is looking forward to a break for a few days before getting back into the swing of things and fulfilling royal obligations.

The three are scheduled to move into their country home in Norfolk within a matter of weeks for the summer.