John Wright peers into a stone. "It's difficult to select stones in the rough. You spend a lot of time under good lighting looking at them through magnification, looking past the surface into the interior of the stone for inclusions and cracks," he said. "It's an art to read the stone you want to use. Even with training and study looking at that stone, you might miss things. It varies from stone to stone. As you cut it, you find imperfections you weren't able to see. You constantly hit that situation no matter how experienced you are."
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