Consulting in Gemmology

Rutiles in a sapphire from Mogok

GGTL Laboratories offers services of consulting in Gemmology in many gem-related fields; we can assist you in several different tasks, such as (amongst others):

  • Gem-related teaching courses, either at the laboratories or at the offices of the client
  • Setting up a gem-testing or a diamond grading laboratory
  • Building a prototype instrument
  • Buying advanced gem testing instruments
  • If you need an expert to help you in a legal case involving gemstones
  • Re-cutting diamonds or other gemstones by very competent and experienced cutters


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