During the symposium at Turquoise United 2022 Joe Dan Lowry presented a comparative, quantified grading system for turquoise. After presenting the system, the panel asked questions as Joe Dan defended the system. This grading event during Turquoise United 2023 will be the final step to prove the system, Joe Dan will be present to discuss any potential flaws to the grading system.
All challengers must physically bring any stones with them that show a flaw in the system. If a challenger cannot produce the stone they are using as an example, how is the turquoise community supposed accept statements without stones to substantiate the claim?
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