Your Dad gave me this "turquoise" pendant necklace for my birthday when we were dating during our high school years. That would make it a vintage piece since that was way back in the "50's !!! It is purely costume jewelery, not the real thing. I really loved this piece and wore it a lot. While we were living in Oklahoma, I became very fond of turquoise jewelery-- the real stuff !! So, more gifts from your Dad coming up !