Oberon multiple layered beaded necklace

This piece is spectacular! Six strands of unique Sterling beads with opaque white beads of various size/shape with some solid color creamy stones with some darker veining present, strand of seed beads. All this with an ornate Sterling center medallion with dangling beads off of it. Styled like from India but is an Oberon designer piece purchased at trunk show Saint Louis Art Museum. Can clean/Polish silver or wear with this patina