1970s Yves Saint Laurent Necklace and Bracelet

I venture to guess this darling set was created by Robert Goossens, as he often favored designs based on ancient jewelry. This gorgeous set brings to mind ancient Rome or Greece, with the circlets around the neck and wrist and the huge circular pieces in the centers. The big "stones" in the centers are glossy poured glass, turquoise with specks of black, with the look of raw stone but the feel of polished gem. The metal is gold plate, I am not sure what the base metal is. The pieces close with hooks in the center of the circles. Both pieces are stamped YSL Made in France.