Versatile Labradorite Protector Prendant. Mystical labradorite gemstone has been known through the centuries as a protector stone. In this sleek minimalist necklace, a string of small blue-gray labradorite stones shimmer along an 18-inch brass cable chain. As the necklace moves in the light, you'll see flashes of vivid colors like peacock blue and waterfall green. The pendant is also flexible so that it can be formed into a curve or a straight line and worn vertically for a chic angular look.