I was driving home from work, it was around 12:15 am on May 1st 2015. I got to the top of a hill that over looks the lake I live on. About 4 miles away from my house. I right away noticed a very bright and distinct light just hovering over the lake that I live on. It was in the shape of a square and it was brighter than a star, only a few stars in the sky that night. As I got closer and closer it still was not moving at all, so I rolled my windows down and turned off the radio to listen to see if I could hear anything like a helicopter. Nothing, I could not hear a sound at all. So I kept driving closer thinking it was one of those balloons people light up and let off into the sky. Once I got close enough to be right under it (however I was on the road and it was over the lake to my left) I saw that it was some sort of an aircraft. However it was in the shape of a diamond. It had the large square light so bright on the front peek, the outer 2 peaks had flashing red lights on them and the back side had a flashing white and green light. It was lower than any plane I had ever seen fly in that area. It slowly started to fly over my head and back north down where I had just come from as I drove under it. Still making no sound at all. When I turned around to try and get a good look it as gone into the darkness. I took two photos on my phone, but when I went to show my father the next day they were not there (not sure if while I was driving they didn't come out or what happened).