|ROMAN NECKLACE OF GRADUATED BICONICAL AMETHYST BEADS
Ex French collection.
In ancient Rome the amethyst was believed to neutralize poisons and by extension, amethyst jewelry was thought to defend the wearer from infection during epidemics.
Ca. 1st-2nd Century AD
L. 41 in. (104 cm.)
Art of the Ancient World, 2012, no. 146