GIA Instruments
GIA also designs and manufactures professional equipment for grading, identifying, and selling diamonds and colored gemstones. These instruments are used to determine the physical and optical properties of gems and analyze their microscopic features.
The first GIA instrument, a 10x eye loupe, was introduced in the early 1930s. Darkfield illumination, a lighting technique that makes gem inclusions easily visible in the microscope, was patented later that decade by Robert M. Shipley, Jr., the son of GIA’s founder and an important figure in gemological instrumentation.
In addition to basic jeweler’s tools such as loupes, tweezers, and gem cloths, the GIA Instruments product catalog includes sophisticated instruments ranging from microscopes to spectroscopes.
Read more about this topic: Gemological Institute Of America
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