Opal Pendant Necklace in 14K Gold Filled. October Birthstone Necklace. This necklace features a mesmerizing laboratory-created white opal. You won't want to take your eyes off the iridescent flashes of blue, pink, and yellow! The gem measures 10X8mm, and the setting, chain, and all findings are 14Kt gold-filled. A sparkling necklace that goes with everything and is sure to become one of your favorite pieces. This necklace is also available in sterling silver: https://www.etsy.com/listing/484258224/ Gold filled jewelry has a layer of solid gold that is 100 times thicker than that of gold plated jewelry. It is hypoallergenic, resistant to tarnish, and will not chip or fade over time. Gold filled has an appearance nearly identical to solid gold, but with a more affordable price. It is highly