Ambergriscan usually sell for up to $50,000 per kilogram. The fishermen sold the substance at around 1.3bn Yemeni rials which equals to about $1.5 million (£1 million) to a trader from the United Arab of Emirates.

Is it illegal to sell ambergris?

You may not collect, keep, or sell ambergris because it is a part from an endangered marine mammal. Ambergris is a naturally occurring by-product of sperm whale digestive tracts sometimes found on beaches.

Is ambergris still valuable?

Ambergris is a valuable and rare substance used in the perfume industry. ... Ambergris has been used by humans for centuries. Fossilised evidence of the substance dates back 1.75 million years, and it is likely that humans have been using it for more than 1,000 years.