This is a 1930s Art Deco clear crystal, like a clean rock crystal necklace with an antique gold filled bolt clasp, gold filled chaining and gold filled connectors. The beads are very unusual Art Deco beveled and off round shape. They graduate from 7mm to 15mm. Weight is 55.9 grams. Size is 17″ long. Condition is excellent, gently used having minor age wear. A few beads have minor rough edges. All original from an estate this is a gorgeous necklace for your collection.