the pearl source 14k gold 8-9mm round white freshwater cultured pearl & diamond lois pendant necklace for women the pearl source this pearl and diamond pendant necklace, nicknamed the "lois pendant," features a 8-9mm diameter round white freshwater cultured pearl in aaa quality. the pearl is mounted on the finest quality 14k gold setting, and features a single 0.14ct diamond in si quality. the total gold weight is 2.15g. the necklace includes a 14k gold chain that measures 18 inches in length.