Kristen Ford is a jewelry artist in Seattle who works with genuine semi precious stones. Her jewelry can be found in certain boutiques around the country. I purchased this necklace in Seattle with a matching pair of earrings. Unfortunately, I lost the earrings. This necklace is 16 inches with an extender. The semi precious stones include tourmaline, citrine, and I believe garnet and possibly peridot. The clasp is sterling silver and has a one inch extender. She does not make this exact necklace anymore, but you can check out her website:kristinfordjewelry.com