Gemstone grading systems


Systems used by different institutes to analyse and grade gemstones e.g. Gemological Institute of America, Hoge Raad voor Diamant and European Gemological Laboratory.

Alternative labels

gemstone pricing systems
gemstone valuation systems
grading systems for gemstones
gemstone assessment systems
gemstone evaluation systems

Skill type


Skill reusability level


Relationships with occupations

Essential knowledge

Gemstone grading systems is an essential knowledge of the following occupations:

Gemmologist: Gemmologists value precious stones by analysing their characteristics, cut, and provenience either for trading or for further polishing efforts. They asses stones and gems to give them a market value.

Optional knowledge

Gemstone grading systems is optional for these occupations. This means knowing this knowledge may be an asset for career advancement if you are in one of these occupations.




  1. Gemstone grading systems – ESCO


Last updated on September 20, 2022

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