Vintage AMAZING designer YSL Robert Goossens Paris France necklace beaded coins

This piece is absolutely a special one! I had this looked at and we are still unsure but from the estate and other sources I had look at it this could be From either Yves Saint Laurent Haute Couture or Robert Goossens a designer for Chanel This is from the 70's, it's a long gold with beads necklace, it has sun coins and an ornate middle piece and two beautiful big cut out filigree sort oval beads, vintage hook clasp. I am not certain but I do know it's VERY VERY NICE AND SPECIAL! I can't price it as YSL not knowing 100%. This is a gorgeous statement necklace that my photos do no justice for. I love the beautiful sun coin tassels. We do know this was made in Paris France and it's 21" long. excellent condition! box 33 I sell in my closet and have tons of other brands similar to list such as weiss, Stanley Hagler, Alice caviness, Demario, Navajo, James Avery, miriam haskell, Jomaz, hattie Carnegie, juliana, Lee sands, Barse, native American, Navajo, Fairchild Baldwin, Elizabeth Taylor, stella & dot, coro, vior,Donald stannard, lisner, renoir, Eisenberg, Christian dior,Givenchy, ciner, carolee's, hobe, Ben amun, Tiffany and co, Vendome, Alexis bittar, Judith jack, kjl, vargas, Sherman, Nolan Miller, Elsa peretti sharra Pagano, Jill Fagin, raebird, Jay feinberg, kenneth Jay lane, Germany, talbots, Lilly pulitzer, J. crew, Japan, Hong Kong, Simon ju, Thelma deutsch, Erwin pearl, monet, Napier, Cynthia Daniel, Judith McCann, hollycraft, Joan rivers, Elizabeth Taylor,