A gold, moonstone and diamond pendant necklace, designed in the Art Nouveau style, depicting a woman

A gold, moonstone and diamond pendant necklace, designed in the Art Nouveau style, depicting a woman in profile within a sinuous abstract frame, set with circular-cut diamonds totaling approximately 0.80 carats, and a cabochon moonstone, accented with a blue enamel flower and white enamel to the reverse, suspending a gold pendant, to a belcher link chain, mounted in bicoloured gold, necklace length 47cm, pendant length 7.6cm, gross weight 37.9 grams