It didn’t take a fashion expert to know Lupita Nyong’o ‘s stolen “pearl” dress was fake — since Piers Morgan claims he knew it was bogus the second he saw it on Oscar night. TMZ got Morgan in NYC Monday … and he says he rubbed elbows with the Oscar winner at the Vanity Fair party, and was close to enough to realize the gown was all smoke and mirrors. As for the theft of the dress originally believed to be worth over $150K … well he only sees one loser in all of this.