This JL925 Jessica Lee Designs necklace is made with blue, brown and black and white patterned vintage pottery and earth tone sea glass. The glass and pottery has been shaped into multi shapes and bezel set in sterling silver. Attached is a sterling silver loop style chain that measures 17" with an extra inch of loops to make it more adjustable in length. Each piece of Jessica Lee Designs jewelry is stamped with the makers mark JL925 on the back.