This luxurious 14k Gold-Filled "Kunzite" Quartz, Pink Tourmaline & Opal Necklace is a stunning wedding of precious metals and exquisite stones. The kunzite-hued hydro quartz stone and October's birthstones, pink tourmaline and opal, are artfully fashioned in 14k gold-fill and set off with a sophisticated sparkle that will bring out the beauty of any ensemble.