The celtic knot is an ancient symbol of the journey of life. With no beginning and no end, the knot represents the timeless nature of our spirits and the world we live in. A Tanzanite celtic knot combines these concepts with the spiritual attributes of the Tanzanite . A pair of tanzanite earrings makes for an unforgettable gift. A rare and precious gem, tanzanite is sure to please. A pair of black onyx earrings are an affordable and elegant gift. Always appropriate and always in style, black onyx should be in every jewelry box.