Mena Suvari married Simone Sestito at Santo Stefano degli Abissin church in Vatican City on June 26.
Suvari wore a wedding dress she co-designed with Alice and Olivia designer Stacey Bendet.
“The ceremony was truly unique and Mena looked breathtaking,” a guest tells People.com. “They are very much in love.”
Following the vows, a reception was held at Odescalchi Castle (the same venue where Tom Cruise and Katie Holmes were married).
Suvari and Sestito got engaged on a trip to Jamaica in 2008. The record producer proposed to the actress with an engagement ring he designed himself.