So we all know that diamonds are a girl's best friend—but pearls sure come in close second. Maybe that is why lovely lady Jackie O never left the White House without her pearls, which are about to be auctioned at Bonhams' "Pioneers of Popular Culture" sale on August 15, predicted to go for a cool $47,000. The three-strand pearl necklace with an emerald and diamond clasp was worn by the iconic first lady in the early '60s as a symbol of her American royalty. Yet, insider sources said that Mrs. Kennedy's neck candy actually may not the real thing! Surprisingly, the pearls are only worth about a few hundred bucks, and it's been rumored that the First Lady chose to wear cheapie pearls since she was prone to misplacing them. It's Jackie O's legacy that seems to have seriously increased the price. So if you care for a little bit of historical glamor, now's the time to empty those savings.