CHANEL VINTAGE 80’s -Rare Chanel Auction piece

SUPER RARE CHANEL VINTAGE NECKLACE I AM NOT ORIGINAL OWNER *** I purchased this at a Chanel endorsed private auction, it was returned to Chanel through a private estate. I was told by Chanel that it was previously owned by someone notable and very valuable. I purchased in 2001. I’m not sure if it’s Jade and I can’t find it anywhere online and I feel like the medallions are also real gold, I’m not sure . I have found similar but nothing exact. I will probably regret selling later ….. The beads are beautiful and shiny green almost like a glass or Groupon and the necklace itself is extremely HEAVY. The tag dates it between 1982-1989 NO JOKE THIS IS STUNNING!!!