Diamond shaped thing in the sky.

I was sitting in my car because the power had gone out in our complex and only our complex. It was very dark outside and the only light that would go by is maybe a car coming or leaving as you will see in the video. So I was charging my phone and using the heater in the car. There were planes that would fly near this object but the object wouldn't move. I could see it rotating and the colors sparkled like a diamond moving under a light. I watched it stay there and look like it was maybe spinning for at least over 10 minutes.