Costel Diaconu Obituary
It is with sadness that the passing of Costel Diaconu (Sioux Falls, South Dakota) is shared. Costel, born on February 11, 1961, passed away on June 17, 2026. Family and friends are welcome to send flowers or leave their condolences on this memorial page and share them with the family.
Costel will be remembered for the time spent with loved ones and the moments that brought joy to those around him. Friends and family will honor Costel by reflecting on shared memories and the positive influence he had in their lives. Though Costel is no longer present, the bonds he created and the experiences shared will endure. Costel’s memory will continue to be a source of comfort for all who knew him.
He was loved and cherished by many people including: his spouse Valerica; and his children, Cornel, Loredana and Steven. He was also cherished by wife, children, family members, friends.
