gemmologist/references/skills.md

Competences — gemmologist

Source: ESCO v1.2.1 occupation-skill relations (http://data.europa.eu/esco/occupation/f87779ae-7389-44e7-b155-16e87904857e).

Essential

• appraise gemstones (skill/competence)
• calculate value of gems (skill/competence)
• examine gems (skill/competence)
• gemology (knowledge)
• gemstone grading systems (knowledge)
• gemstones (knowledge)
• immerse gemstones in chemical liquid (skill/competence)
• operate microscope (skill/competence)
• recognise fake goods (skill/competence)
• use gemstone identification equipment (skill/competence)
• write gemstone grading report (skill/competence)

Optional

• advise customers on jewellery and watches (skill/competence)
• alloys of precious metals (knowledge)
• chemistry (knowledge)
• conduct jewellery market research (skill/competence)
• cut gem stones (skill/competence)
• determine origin of gemstones (skill/competence)
• develop jewellery designs (skill/competence)
• model mineral deposits (skill/competence)
• polish gemstones (skill/competence)
• precious metals (knowledge)
• trade in jewellery (skill/competence)

Market evidence (job-ad analysis, 5 ads, as of 2026-07-12)

Share of analyzed job ads mentioning the item (threshold ≥ 20 %). Source: JSearch/Adzuna APIs.

Hard skills

• data analysis — 40 %
• data collection — 40 %
• analytical chemistry — 20 %
• experiment design — 20 %
• gem identification — 20 %
• gemological investigation — 20 %
• gemological research — 20 %
• gemological testing — 20 %
• gemstone geology — 20 %
• laboratory research — 20 %
• laser processing — 20 %
• laser technology — 20 %
• optical instrumentation design — 20 %
• problem solving — 20 %
• project management — 20 %
• sample preparation — 20 %
• scientific research — 20 %
• solid state physics — 20 %
• spectroscopy — 20 %

Methods

• time-resolved optical methods — 20 %
• adaptive optics — 20 %

Responsibilities

• data collection — 40 %
• data entry — 20 %
• gem characteristic documentation — 20 %
• assisting researchers — 20 %
• independent research — 20 %
• instrument development — 20 %
• instrument prototyping — 20 %
• measurement technique validation — 20 %
• patent filing — 20 %
• presentation support — 20 %
• project oversight — 20 %
• report generation — 20 %
• report support — 20 %
• research experimentation — 20 %
• research on colored gemstones — 20 %
• research project execution — 20 %
• research proposal development — 20 %
• training new staff — 20 %
• technical support — 20 %