Brown cord (If tassel is ordered: matching colour)
Buddha sat under the pipal tree and once he obtained enlightenment under their sacred branches it was then referred to as the "Bodhi" tree. Buddha means the "enlightened one" and BODHI means "enlightened."
As an "enlightened" seed many practitioners use these malas for their essence and inherent teachings within each seed.
The seed of the Bodhgaya Bodhi will become a dark brown over time as the oils of your skin permeate the seed.