Givenchy Necklace with "G" in Hexagonal Pendant of Black Enamel and Rhinestones

Givenchy thick chain necklace with hexagon pendant. Pendant had black enamel and rhinestones a surrounding a black "G". Nice shining gold plate. 14" Chain. Reflecting GG Clasp. Bit of markings from age but overall very good overall. Look closely at photos for best depiction of all details. Vintage Givenchy dated 1978.