GRADING AND CERTIFICATION

FINE Jewelry

GCAL Diamond Jewelry Report

Diamond
Jewelry Report

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GCAL Diamond Jewelry Express Report

Diamond Jewelry
Express Report

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GCAL Diamond Jewelry Report Card

Diamond Jewelry
Card

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GCAL Colored Stone Jewelry Report

Colored Gemstone
Jewelry Report

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ELEMENTS OF A GUARANTEED CERTIFICATE
Each panel of a GCAL Certificate tells a story to the customer.
  • Panel 1

    Verifies the identification process

  • Panel 2

    Verifies the 4C's quality grading

  • Panel 3

    Illustrates the quality of cutting and proportions revealing the skill of the diamond cutter

  1. 1Gemprint
  2. 2Laser Inscription
  3. 34C's Grading
  4. 4Photomicrograph
  5. 5Hearts & Arrow
  6. 6Optical Brilliance
  7. 7Optical Symmetry
  8. 8Proportion Diagram