The value of jade couldn't be measured by just one color. It was only valuable when the quality of the water contained was good.
Due to time constraints, Martin and the others could only choose the red Obsidian, which had old enough water contained.
To a certain extent, stone gambling was even more dependent on luck than gambling in casinos. One could cheat in the casinos, but it was completely impossible to tell when gambling on stones. It was just blind guessing.
It was just that everyone had summed up their experience through thousands of years of constant exploration. Most of the raw stones were consistent with their experience, but there were always some abnormal situations.
The expert looked at the anxious Martin and could only comfort him, "At least mauve is at the bottom. Ours is still okay. As long as it's above the ice-type, we won't be last."