This set came to Baduk Club from a pawn shop in Saitama, Japan. Agate and Onyx are a popular choice in China, where this set probably came from originally.
The white pieces are agate, with a nice variance in color. The black are onyx, also with interesting variations. They are about size 36 (10mm) thick, but note that agate is very hard so it is hard to cut with the same precision as slate and shell. There is a full set, plus two spare white pieces.
The go bowls are Marble, with nice lids cut to match. They are polished on the outside but may be rough on the interior.
This is a Vintage product.
FedEx International Priority shipping from Japan is already included in the purchase price. Please allow a week for packing and customs, then we will provide a tracking number from the shipping service that you can use to sign up for notifications. It is possible to downgrade to Japan Post shipping for a discount of $40, but this is done at your own risk, so please contact us to request this.