Diamond Color Grading

Diamond color grading is a delicate process that requires the right equipment and tools.

Free Printable Diamond Color Grading Tray

Diamond color grading is a delicate process that requires the right equipment and tools. Bluestone Trading has you covered by providing our free downloadable and printable diamond trays! Use our free color trays for sorting and grading diamonds and other gemstones. Follow the quick 5 step directions below.
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Place a lined fold guide on top of the color tray. Fold both trays together through this process, and remove the guide after finished.

  1. Fold inward at the line labeled 1
  2. While the tray is folded inward, fold to the side both lines labeled 2. Then unfold at line 2
  3. While the tray is still folded inward at line 1, fold on line 3.
  4. Unfold tray at line 1.
  5. Push the edges of the paper, outside of fold 2, inwards.

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