Thread: The......Belgian Brotherhood?

.is there a difference in value between [...]

This of course depends. Genrally spoken, yes there is a difference in value.
A naturally grown combo stone is far more rare than an artificial one.
Anybodoy can glue a coticule to a bbw.
So given the chance you find someone looking for something rare as this,
he will eventually be willing to pay more, than for an artificial.

Looking at the pictures of your 8x3 Combo I am in doubt if this is a naturally grown coti/bbw combo.
The edges of the border are very sharp for a grown stone.
But then again, I am no expert.