Bracelet could be used as necklace extender if so desired since both have the same clasps.

AGATE FOLKLORE: Ancient civilizations believed that wearing agate would make them invisible, thus protecting them from danger. Farmers used agates to ensure good crops. Romans wore it to please the gods in order to bring an abundant harvest. In Persia, agate was worn to confer eloquence, and magicians used the crystal to divert dangerous storms. In ancient Asia, agates were used to see the future.