GRADING AND CERTIFICATION

LAB GROWN DIAMONDS

Guaranteed Premium 8X Certificates

GCAL 8X Certificate
GCAL 8X Certificate
Lab Grown Diamond
8X® Ultimate Cut Grade Certificate

Guaranteed Signature Certificates

GCAL Certificate
GCAL 8X Certificate
Lab Grown Diamond
Signature Certificate
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GCAL 8X Certificate
Lab Grown Diamond
Signature Certificate With H&A
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Guaranteed 4C's Certificates

Express Certificate
Lab Grown Diamond
4C's Express
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Lab Grown Diamond 4C's Essentials Certificate
Lab Grown Diamond
4C's Essentials
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Grading Card
Lab Grown Diamond
4C's Card
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ELEMENTS OF A GUARANTEED CERTIFICATE
Each panel of a GCAL Certificate tells a story to the customer.
  • Panel 1

    Illustrates the identification process and physical proportions. Every GCAL certified diamond is Gemprinted and laser inscribed with the identification number for simple future identification.

  • Panel 2

    Actual photos of each individual diamond show the appearance of the clarity characteristics and cut features. The Light Performance Profile is a direct assessment of a diamond's light handling ability and visual proof of the quality of the cut.

  • Panel 3

    The 4C's Grading information and all the specifications. Scan the QR code to verify and view the digital certificate, including hi-res photos, and videos when applicable.

  1. 1Gemprint
  2. 2Laser Inscription
  3. 3Proportion Diagram
  4. 4Photomicrograph
  5. 5Hearts & Arrow
  6. 6Optical Brilliance
  7. 7Optical Symmetry
  8. 84C's Grading