Adorable actress Kristen Bell is newly engaged and at the 2010 Grammy Awards she showed off her engagement ring! The 29-year-old star, who got engaged to longtime boyfriend Dax Shepard over the holidays, received a 3-carat, emerald-cut fancy colored diamond designed by Neil Lane. The main stone is surrounded by tiny white diamond accents. Kristen and Dax, 35, both star in the new romantic comedy WHEN IN ROME. Bell's fancy-colored sparkler perfectly complemented the dark Etro dress that she donned as one of the evening's presenters alongside Josh Duhamel.