The 28-year-old bride-to-be is a jewelry designer and the daughter of Universal Studios head Ron Meyer. The couple have been dating since 2003 and share a home in Los Angeles.
Maguire was previously linked with his Spider-Man costar Kirsten Dunst and was engaged to actress Rashida Jones in 2002.
Maguire is currently filming the third installment in the Spider-Man series.
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