How do they match: Gem and Diamond Workers

  • Assign polish, symmetry, and clarity grades to stones, according to established grading systems.
  • Examine gem surfaces and internal structures, using polariscopes, refractometers, microscopes, and other optical instruments, to differentiate between stones, to identify rare specimens, or to detect flaws, defects, or peculiarities affecting gem values.
  • Locate and mark drilling or cutting positions on stones or dies, using diamond chips and power hand tools.