1970s Abstract Gold Necklace Pendant

A 15 karat and 18 karat yellow gold pendant necklace, pendant circa 1970. The 18 karat yellow gold chain comprised of textured quadruple bar links alternating with lengths of Byzantine chain suspending a round abstract openwork pendant highlighted with a jubilee cut diamond weighing approximately 0.30 carat. Length of chain approximately 30 1/2 inches; diameter of pendant approximately 1 5/8 inches. Gross weight approximately 44.40 grams.