A lapis lazuli necklace features deep blue stones, often flecked with gold (pyrite) and white (calcite), symbolizing wisdom, truth, and royalty, and is crafted into various styles from simple pendants on silver or steel chains to more elaborate designs, offering a blend of natural beauty and historical significance. These necklaces are cherished for their vibrant color, often associated with the heavens, and are believed to bring inner peace and honesty, with fine stones coming from places like Afghanistan, Russia, and Chile.