The Grade of Go Stones
The evaluation criteria of Go stones are different between the ones
made from Hyuga Suwabute clamshells and Mexican clamshells.
Legendary Hyuga Clamshell Go Stones
The grade of Hyuga clamshell Go stones is based on its pure whiteness. The purer the whiteness, the higher the price.
Snow grade has the purest whiteness, followed by Moon and flower grade.
Snow Grade－Moon Grade－flower Grade
High←←Whiteness→→Low
Include quality certification of Hyuga clamshell Go stones.
Delivered in a special paulownia box for Hyuga clamshell Go stones.
Hyuga's Traditional Handcraft Go Stones (Made from Mexican Clamshells)
The grade of Hyuga's traditional handcraft Go stones (made from Mexican clamshells) is based on its stripe pattern. The more stripes, the more valuable it is.
Snow grade has the most stripes, followed by Moon and Blossom grade.
Snow Grade－Moon Grade－Blossom Grade
High←←Stripe Density→→Low
This photo of Hyuga's traditional handcraft Go stones (made from Mexican clamshells) is taken on the lightbox. As it shows, there is a difference among the pattern of its stripes.
Snow Grade
Moon Grade
Blossom Grade
Include quality certification of Hyuga's traditional handcraft Go stones (made from Mexican clamshells).
Snow Grade, Size 32~
Moon Grade, Size 36~
are packed in a special paulownia box
Snow Grade, ~Size 31
Moon Grade, ~Size 35
and Blossom Grade are packed in a paper box.
Size of Go Stones
As you can see in the photo, the size number is according to the thickness of the WHITE stones.
And the black stones are about 0.3 mm thicker than the white ones.