Nicole Richie Designed Engagement Ring

Nicole Richie designed her own engagement ring.

After three years and two children, the socialite revealed her engagement to Good Charlotte rocker Joel Madden during an appearance on CBS’ Late Show With David Letterman this week. Wedding plans have been in the works for months and Nicole worked with renowned celebrity jeweler Neil Lane on the band, which is accentuated flawless four carat, round diamond. Lane has created pieces for a host of stars, including Gwyneth Paltrow, Madonna, Nicole Kidman, and Charlize Theron, but was smitten with the way Joel allowed his bride-to-be to have complete control over the design.

“We designed it together. Nicole was lovely and wonderful to work with on it! She wanted a beautiful, special ring and wanted to be intimately involved in the design,” Lane told PEOPLE Magazine on Wednesday. “Joel just wanted her to have her dream ring.”

Joel and Nicole are expected to wed this summer.