Diane M. Colletti, 77, of Roselle, Illinois, passed away peacefully on October 13, 2026, surrounded by her beloved family. Born on November 11, 1948, Diane lived happily as a loving wife, mother, and grandmother.
She was preceded in death by her parents, Erhard and Albina Ziedrich, and is now joined in heaven with her husband of 54 years, John Colletti. Together they raised four wonderful children: Alysen Colletti, John P. (Rebecca) Colletti, Jaclyn (Naim) Dabeca, and Jeanine (Adam) Vena.
Diane was a proud and devoted grandmother to Lindsay, Gianna, Brianna, Kaitlyn, John, Danielle, Hailey, and Alexa, and a beloved sister to Curt Ziedrich.
Each spring she enjoyed planting her flowers, taking pleasure in the beauty of her garden. Her warmth, elegance, and lively interest in the world around her brought joy to those who knew her.
A memorial visitation will be held on Saturday, November 7, at Countryside Funeral Homes & Crematory, 333 S. Roselle Rd., Roselle, IL 60172, from 4:00 p.m. to 8:00 p.m., where family and friends are invited to celebrate Diane’s life and legacy. A memorial prayer service will take place at 5:00 p.m.