Beautiful double strand Givenchy necklace from 1977. The logo clasp has all the Givenchy markings. There is a bit of similarity to the Vivienne Westwood Orb Choker however this necklace fits a bit looser. Take it to a jeweler and they can perfectly fit it to your neck if you prefer the tight choker look.
Great vintage condition, there is one small rhinestone missing on the clasp (pictured, but barely noticeable)