Prince William's 3rd Anniversary Gift to Kate: $6K Watch As they celebrate 'privately' today By Evann Gastaldo, Newser Staff Posted Apr 29, 2014 10:29 AM CDT 9 comments Comments Britain's Prince William and his wife Kate, Duchess of Cambridge attend a demonstration at a skate park in Adelaide, Australia Wednesday, April 23, 2014. (AP Photo/David Mariuz) (Newser) – It may feel like you've been hearing about Prince William and wife Kate for a thousand years, but they've only been married for three, as of today. And she got quite an anniversary gift, the Daily Mail reports: Wills gave her a Cartier watch that cost upward of $6,000; it's embedded with a sapphire, to match Kate's engagement ring. He reportedly gave it to her before they set off on their three-week tour of Australia and New Zealand, and Kate wore it every day they were gone. The watch has another link to Princess Diana (who, of course, was the first owner of Kate's ring): Di also wore a Cartier watch, and once had one engraved for William for his birthday. Oh, and then of course there's the fact that the queen "is encouraging Kate to build up her own collection of Cartier items," the Mail notes. As for how the royal couple is celebrating their anniversary, officials say they're doing so "privately," according to the Daily Beast; the Mirror says they're expected to spend time with Kate's family. They were apart on their second anniversary, with William on duty as an RAF pilot.