I am listing some vintage jewelry I own. This is a Castlecliff marked seven strand necklace and clip earring set made of dangling iridescent jet black beads. The fasteners are silver vermiel. This set is from the 1950's and was purchased by my great aunt. The necklace is 15 inches. The earrings are about 1 inch each. This has been carefully stored in my non-smoking home. These are vintage pieces so there may be some tarnish.
 
Thank you and I hope you enjoy your new purchase!

From the Jackson Jewels website:
Castlecliff originated as Castlemark by Clifford Furst and Joseph Bobley in 1937 but the jewelry was first marked in 1941 with the Castlecliff name and line introduced in 1945. The chief designer was William Markle who created bold, intricate well constructed Gothic, Renaissance and Art Deco designs, 3-dimensional, and tremblers on springs using gold plated, sterling silver, and silver plated base metals on the jewelry. The pieces contained faux pearls, faceted color rhinestones, lapis, jade, and carnelian plastic and ceramic stones. Mark: "Castlemark", "Cassandra" in 1957, "Castlecliff alone or with copyright symbol" after 1955, "Anne Klein for Castlecliff" in 1977. The company ceased business in 1977. In 1980, the company was reopened and taken over by Lucien Piccard Industries-Pierre Cardin. The jewelry is now tagged "Castlecliff Jewelry Div. of Lucien Piccard".