Filigree and Enamel Topaz Glass Necklace From the filigree to the enamel work to the glass stones, this beautiful necklace has all of the signs of being a wonderful example of Czechoslovakian jewelry. A large topaz glass stone is framed by floral enamel embellishments for the centerpiece. This detail continues on the necklace with alternating filigree and enamel links with a hidden clasp. Unsigned, necklace measures 15", centerpiece is 1-1/8" wide. Excellent condition.