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ACA Gemological Laboratory

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  • Category: Diamonds
    • Gem Faceting Design Discoveries Abbrev in ‘Gemmology Today’
    • Category: Ideal Cut
      • Identify the Ideal by the Eye of the Diamond
      • Ideal Cut
      • What is the American Ideal Cut?
      • The Central Ideal
      • The Accord in Round Brilliant Diamond Cutting
    • Category: Cut, Beauty-Light Performance
      • Diamond Design and Light Performance 101
      • Round Brilliant Cut Beauty and Light Performance Part 1
      • Round Brilliant Cut Beauty and Light Performance Part 2
      • Diamond’s Spectral Constellation
      • History and Utility of Gemstone Reflection Pattern Generation and Analysis
      • Gem Faceting Design Discoveries
      • The Ideal Brilliant Cut and Illumination Contrast
      • Describing Diamond Beauty and Light Performance
    • Category: Color
      • Over Grading of Blue Fluorescent Diamonds Summary
      • Over Grading of Blue Fluorescent Diamonds Revisited
      • The Overgrading of Blue-Fluorescent Diamonds
      • A Place for CZ Masters in Diamond Colour Grading
    • Category: Clarity
      • Objective Diamond Clarity Grading AI
      • Objective Diamond Clarity Grading

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  • Diamond Cut Beauty Light Performance
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