How much does whale vomit cost?

Ambergris is actually produced in the intestines and may be passed in the faeces, or vomited.

Small quantities, harvested ethically, can retail up to $25 US dollars per gram.

Larger quantities, such as used in manufacture, may be available more inexpensively, from $10-20 US dollars a gram

Global Ocean Trotters, a company based in Cameroon, offers ambergris for sale from $4000/kg (equates to $4 per gram) and offers to provide certification of origin.