Lead crystal cross

Very beautiful extremely heavy Waterford cross 10 inches tall 6 inches of crossed absolutely gorgeous in a window. Mom had a cabinet that had nothing but Waterford crystal As that is all she was allowed to be in there so I assumed that it was Waterford. I could not find the Waterford mark so I took it down and had it appraised it passed all the tests for being Waterford but I’m not comfortable listing it as that without a mark