How do they match: Gem and Diamond Workers

  • Gem and Diamond Workers

  • Diamond Sizer and Grader
  • Jewel Blocker and Sawyer

  • 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.