2012-09-12 - Nevada desert, NV - Diamond

i was ou t in the orthern nevada desert around 9 pm at night, saw this large diamond shape fly over, completly blocked out the sky, im not afraid of them so i thought cool, it stopped and then a bright blue light in the center of it came down and like a search light moved around then it landed, sucker was huge, im saying at least 4 football fields long on each side, maybe longer,very quiet, no noise i was maybe 1500 ft away from it, like a fool i waved at them with my flashlite, it then lit up like a christmas tree and made a wierd sound and the light int he middle of it went out and it just sat there,for maybe 10 minutes i could make out human shapes in the windows moving aorund, didnt look wierd or look liekt he normal grays, looked human,then it just wentup and tilted and was gone,