"Our Birthstone Collection is an ode to the idea that you are as beautiful and unique as a gemstone and should be as celebrated as the star that you (actually) are. September's birthstone, Sapphire, enables understanding of one's own truths and inspires the courage to live them. Three 4mm faceted cube gemstones 16\" long with a sterling silver extender allowing it to be worn up to 18\" Sterling silver lobster clasp Mighty Miracle nylon cord FSC certified card" Crystals, September Birthstone Necklace, Birthstone Necklace, September Birthstone, Gemstone, Birthstones, Gemstone Jewelry, Sterling Silver, Sterling