I purchased this necklace in Venice, Italy several years ago from an art gallery where they also sold jewelry. It is made up of 11 pieces of rectangular shaped colored glass with foil inside. Each piece measures 3/4" X 1/2" X 1/4". There are tiny end caps on both sides of each bead. In between each large bead is a small round glass bead with two silver spacers on either side. The length of the necklace with the extension chain is 19". Not sure if the silver is sterling or not as it is not marked anywhere. Excellent condition.