There is another creature in the islands somewhere which drops ambergris. I am at a loss as to why ambergris is considered a gem, as in reality it comes from sperm whales and is used in the perfume industry. It is listed here only because it is salable at the gem shop.
a small green lump of ambergris
a medium green lump of ambergris
a large green lump of ambergris
a small yellow lump of ambergris
a medium yellow lump of ambergris
a large yellow lump of ambergris
a small grey lump of ambergris
a medium grey lump of ambergris
a large grey lump of ambergris