Silicon Gemstone Jewelry for Everyday Use Silicon Necklaces and Silicon Pendants are the most stunning jewelry items gaining popularity despite our production of beautiful 925 sterling silver, which complements the style of jewelry enthusiasts worldwide. Silicon necklaces and pendants can be paired with a variety of other necklaces, such as silicone cords, leather cords, or metal chains, and are available in a variety of designs, ranging from minimalist and contemporary to bold and statement-making.