Vintage Monet peridot green ,& opaline necklace

Unique, and wonderful Monet necklace. Heavy gold tone chain with free sliding ring spacers and peridot color tiger eye drops alternating with opaline color peridot crystal drops. Someone has added a removeable extender to the clasp.(very nice). I have never seen stones like these, the entire necklace is fabulous in design and color. It lays so nicely. Pristine condition.Photo does not show wonderful coloring.