The Holy Grail of Elvis Presley jewelry is going up for grabs -- it's his iconic lion claw necklace, and some Elvis-crazed collector might have to drop half a million dollars, or more, to nab it at auction.
Elvis famously wore the lion claw around his neck for years, both on and off stage ... including during some of his most memorable moments.
When Elvis met Muhammad Ali at the peak of the boxer's prime, the lion necklace was dangling from the singer's neck.