Think you know the difference between a real and a fake diamond? Or a true designer bag versus a knockoff? Rick Harrison, star of The History Channel's hit series "Pawn Stars" has 28 years of training... more 
Think you know the difference between a real and a fake diamond? Or a true designer bag versus a knockoff? Rick Harrison, star of The History Channel's hit series "Pawn Stars" has 28 years of training in this department. He shares some tricks of the trade. Photo: "Pawn Stars." less 
1 / 24
WSJ Live
Thu, Mar 20, 2014 1:08 PM EDT