PROM DRESS

I RECENTLY WAS AT WORK...AND I SAW THIS GIRL PASSING BY AND I KNEW THAT SHE WAS WEARING THE DRESS THAT I WANTED FOR PROM I ASKED WHERE SHE GOT IT AND SHE DAVIDS BRIDAL SO I WENT TO LOOK AND THEY SOLD OUT IT COSTED MORE TO MAKE IT... ITS A FITTED FROM THE TOP AND REALLY PUFFY FROM THE BOTTUM WITH SHIMMERY DIAMONDS FADING FROM TOP TO BOTTUM ITS PURPLE ITS THE CUTTEST WELL DOES N E ONE KNOW WHERE I CAN FIND ON ONLINE TO BUY?