I guess it is kind of what a person deems huge. Divided among the worlds population according to this article about 23 grams per person. Only a fraction of an ounce so enough to make a few rings maybe.

If you put it all to gether in one place it would probably look huge. If you spread it out among all the people of the world, it is pretty scarce.

The supply increases at the rate of about 1-2% a year currently.

John