Extraordinary Hellenistic Gold & Amethyst Necklace

with a large intaglio bust of a maenad.
Late 2nd - 1st Centuries BC.
Necklace Length: 20 in. (51 cm.); Pendant Height: 1 1/2 in. (3.7 cm.)
ex: private British collection, 1930's.
Published: Antiquarium Ltd.; Ancient Treasures V (New York, 2007) p.34
cf: Kleiner, Diana & Susan Matheson; I Claudia II. Women in Roman Art & Society (Austin, 2000) Fig. 7.5
#4326