Sienna Miller and her rumored fiancé Lucas Zwirner have called it quits, a new report claims.
Page Six reported the split news but didn't give a reason for the parting.
The actress and the art gallery executive never confirmed their engagement, but a source said he popped the question last January. Shortly after, Sienna was seen wearing what appeared to be an engagement ring. She was also photographed wearing the same ring in July.
The couple dated for a year, but things weren't necessarily always on the up and up. In fact, Page Six reported that the duo "previously hit a rough patch before they purportedly got engaged."
While the exact timing of the split isn't publicly known, Sienna and Lucas were last pictured together running errands in July.
During the romance, the couple attended several high-profile events together, including Ellie Goulding and Caspar Jopling's wedding and a pre-Met Gala event. During that time they were "clearly deeply smitten," Page Six noted.
Sienna has previously been engaged to Jude Law and Tom Sturridge.