FM42 Crystal & Black Enamel Greek Key Open Circle Pendant Necklace & Stud Earrings Jewelry Set S1 Costume Jewelry. All materials that used for this item is simulated or synthetic. Normally, the transportation time is about 7-15 days. The pendant measures 20mm in width and 26mm in height. Necklace chain is 44cm long. The earrings measure 13mm in diameter.