Celebrate your birth month, or the birthday of someone you cherish, with this sterling silver or 14k gold necklace inspired by our Cherished Birthstone Rings. Ideal for layering with other birthstone necklaces or worn on its own for a sweet, sparkling statement. Note: Due to the one-of-a-kind nature of gemstones, exact colors and patterns may vary from what is shown in the image. Specifications Sterling Silver or 14K Yellow Gold Adjustable from 15 to 17 inches or 18 to 20 inches Available in 12 Avery birthstones Garnet, Amethyst, Lab-Created Aqua Spinel, Lab-Created White Sapphire, Lab-Created Emerald, Lab-Created Alexandrite, Lab-Created Ruby, Peridot, Lab-Created Blue Sapphire, Lab-Created Pink Sapphire, Citrine or Blue Topaz Our Amethyst, Blue Topaz and Citrine 5mm round faceted stones have been heated to enhance the color. Avoid direct sunlight or extreme or prolonged heat. Lobster Clasp Closure *******it does have a small knot by clasp. It can be taken out I just don’t have the patience. You can use a straight pin if needed.