MCM Abalone Mother of Pearl and Red Natural Stone Beach Surfer Necklace

MCM Abalone Mother of Pearl and Red Natural Stone Beach Surfer Necklace Stunning mid-century modern surfer beach vibes summer boho necklace. The main stone is a red natural stone with brilliant white polished round mother of pearl / abalone along side the red stone. About 3" from each side of the main stone the stones go back to a natural tumbled stone are not smoothly polished. The red beads may be carnelian or red jasper? The toggle clasp isn't signed or stamped that I can see and it may or may not be sterling silver. The overall necklace length is about 17" and the center bead measures 1/2" wide x about 1" in diameter. Unique one-of-a-kind piece.