STEFAN HAFNER, A Necklace and a Pair of Earrings, 18 kt. gold, Astrakhan Collection, set with 305 brilliant cut diamonds with the approximate weight of 4 ct., Valenza hallmark, maker's mark nr 3861, remarked with Oporto hallmark (post-1985), Italian, 20th C., chain with various sizes options, with case and certificates of authenticity nr COL750SH1890 and BRI750SH1891, Notes: The Stefan Hafner Manufacturer was created in the Italian city of Bologna in 1967. http://www.stefanhafner.com Dimensões (altura x comprimento x largura) - 6,5 (pendente); 7,5 (brincos) cm; Peso - 30,6 grs.