This amazing 1966 DeLizza & Elster creation is called Elegance. Aptly named, it features large oval chalk white with brown striped art glass stones surrounded by AB round and topaz navette rhinestones. It is set in gold tone metal. This is a book piece, and can be found on p.45 of Ann Pitman's reference book on Juliana Jewelry.
The inner length is 16 inches, the dangle adds another 2.25 inches to its overall length. The condition is superb, it looks like it was never worn.