Tri-fold Grading Reference Card


made of paper that is tear-resistant and water-resistant, the reference card is an illustrated, instruction set with directions, diagrams and charts for judging cultured pearl body color, surface quality, blemishes, nacre thickness, shapes, size, and matching by cultured pearl variety.


Additional information

Weight 0.5 oz
Dimensions 7.5 × 5.25 × .1 in

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