26" Mixed Metal link chain, a Copper Lobster Clasp lock.  3.25"pendant.  A clear Quartz pendant is known to be a powerful crystal, a "master healer" gem and it helps in enhancing mental clarity.  The Labradorite stone is tied to spriritual protection and inner strength, it's a guardian of the aura.  I would pair this with a shorter necklace and a long skinny chain, that is plain- let this be your focus piece.