Gemology

Gemology or gemmology is the science of dealing with natural and artificial gems and gemstones.^[1] It is considered a geoscience and a branch of mineralogy. Some jewelers are trained gemologists and are qualified to identify and evaluate gems.^[2]

Gemology Media

Examining a pink sapphire under a gemmological microscope
Peridot (Mg, Fe)₂SiO₄ in the rough form and a cut and polished gem.
Gemmological travel lab KA52KRS
A selection of ornamental, non-precious stones made by tumbling rough pebbles with abrasive grit in a rotating drum. The biggest pebble here is 40 millimetres (1.6 in) long.
Traditional handheld refractometer
Three inclusion phases in rock crystal quartz
The curvature observed in this synthetic color-change sapphire is due to a process known as the Verneuil process or, flame fusion.