Artisan crafted semi precious stone collar necklace

This is a gorgeous necklace, the multicolored semi precious stones make it stand out. Purchased decades ago, this once loved, much worn piece has been tucked away for at least a decade. She is in beautiful condition with one exception, there is damage to one of the stones nearest the clasp (see photos) all of the other stones are in perfect order. The necklace measures approximately 20 1/2” from loop to clasp. The drop measures approximately 3” in length This is a heavy piece.