Glossary & Picture Library, learn

  • Hot Laser Inscription
  • HPHT (High Pressure High Temperature) Treatment
    HPHT Treatment
  • Heart Cut
    Diamond cut or shaped into a heart
  • Hearts & Arrows
    Hearts and Arrows
  • Hardness
    Understanding the Durability of Diamonds
  • Head
    The head of a pear cut diamond refers to the wider, rounded end of the stone
  • Graining
  • Green Diamond
    Green Diamond: A Rare and Unique Natural Treasure
  • Grainer
    The term "grainer" is used in the diamond industry to describe a diamond’s weight in quarter-carat (0.25 ct) increments.
  • Grading Report
    Grading Report: The Blueprint of a Diamond's Quality