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Gem and Diamond Workers

SOC 51-9071.06Job Zone 3 · Medium Preparationv.26.05

Context coveredThis framework covers gem and diamond grading, optical examination, valuation, quality control, customer advisory, and production technology use across entry-level through senior-leadership roles in gem processing and jewelry trade environments.

Sources:O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.SkillsCrosswalkSkillsCrosswalk — O*NET enrichment + adjacency index. Opens in new tab.
Emerging
Entry / Apprentice
  1. Magnifying glasses and loupes — use under direct supervision to examine gem surfaces for obvious visible flaws on a production floor.
  2. Cut angles and bore positions — verify against standard specifications under supervisor guidance during routine gem processing.
  3. Polish and symmetry grading terminology — recognize and apply basic definitions when sorting stones according to established grading charts.
  4. Polariscopes and refractometers — operate with step-by-step instruction to distinguish common gemstone types in a supervised lab setting.
  5. Plot diagrams — complete basic clarity characteristic documentation for common stones under close mentorship in a grading environment.
  6. Pricing guides and wholesale rate sheets — reference under direction to produce initial value estimates for standard gem lots.
  7. Hand tools for gem handling — use with care and arm-hand steadiness to avoid damage during entry-level sorting and inspection tasks.
  8. Inventory management software — enter basic gem descriptions and quantities into a pre-configured database under supervisor oversight.
  9. Customer inquiries about gem suitability — respond to straightforward questions using scripted guidance and product reference materials.
  10. Quality control protocols — follow established checklists to flag out-of-tolerance stones for review by a senior gem worker.
Developing
Mid-level / Established
  1. Loupes, shadowgraphs, and microscopes — apply routinely to examine gem processing accuracy and confirm cut angles meet quality standards with minimal oversight.
  2. Polish, symmetry, and clarity grading scales — assign grades independently to common stones using established grading systems in a production or retail setting.
  3. Wholesale and retail gem values — estimate with confidence by consulting current pricing guides and tracking market fluctuations for standard gem varieties.
  4. Optical instruments including polariscopes and refractometers — use proficiently to differentiate between familiar stone types and detect common internal defects.
  5. Plot diagram documentation — produce accurate clarity characteristic records for a range of stones, flagging unusual inclusions for senior review.
  6. Color discrimination and visual grading — apply calibrated visual color assessment to sort and grade gems consistently across a full production shift.
  7. Customer consultations on gem selection — conduct with active listening and clear speaking to help clients choose appropriate stones for jewelry applications.
  8. Analytical or scientific software — input gem examination data and generate standard reports in support of grading and quality control workflows.
  9. CAD software for jewelry design reference — review gem dimensions and proportions within design files to confirm stone suitability for setting specifications.
  10. Inventory and accounting software — maintain up-to-date gem lot records and assist with pricing calculations as part of routine operational duties.
Proficient
Senior / Expert IC
  1. Full optical instrument suite including polariscopes, refractometers, and microscopes — deploy autonomously to identify rare gem specimens and detect subtle flaws affecting market value.
  2. Grading system criteria for polish, symmetry, and clarity — apply across diverse and non-standard stone types, resolving borderline cases independently in a professional grading environment.
  3. Gem valuation assessments — produce defensible wholesale and retail estimates for complex or unusual stones by synthesizing pricing guides, market data, and economic context.
  4. Clarity characteristic plot diagrams — generate comprehensive, audit-ready documentation for full gem parcels, capturing nuanced internal features that influence value and identity.
  5. Stone differentiation and defect analysis — conduct thorough examinations of unfamiliar or disputed gems, delivering expert findings to management or clients.
  6. Quality control analysis — design and execute systematic inspection routines for gem batches, identifying process deviations and recommending corrective actions on the production floor.
  7. Customer and trade partner advisory services — deliver informed recommendations on gem use in jewelry design, drawing on deep product knowledge and critical thinking about aesthetic and value trade-offs.
  8. Gem identification edge cases — apply deductive reasoning and category flexibility to classify ambiguous specimens and document conclusions with supporting evidence.
  9. Finger dexterity and control precision in gem handling — perform exacting manipulation of small stones during grading or setting preparation without damage or measurement error.
  10. Internet and market intelligence resources — synthesize current market trends and auction data to produce context-aware valuations and advise stakeholders on purchasing decisions.
Advanced
Lead / Principal / Executive
  1. Grading standards and quality control frameworks — develop, refine, and implement organization-wide gem evaluation protocols that align with industry best practices and business objectives.
  2. Gem worker training programs — design and lead structured apprenticeship and on-the-job instruction that builds proficiency in optical instrument use, grading, and documentation across the team.
  3. Valuation methodology — establish pricing models and market-monitoring systems that guide enterprise-level buying, selling, and inventory strategy for gem and jewelry operations.
  4. Optical and analytical instrument capability — evaluate, procure, and champion adoption of advanced scientific tools that raise the precision and efficiency of gem examination across the facility.
  5. Quality assurance governance — set measurable accuracy and consistency standards for grading outputs, audit team performance, and lead continuous improvement initiatives on the production floor.
  6. Strategic customer and trade relationships — leverage expert advisory credibility to cultivate high-value client partnerships, resolve escalated disputes, and represent the organization at trade events.
  7. Gem identification and rarity assessment expertise — serve as the final authority on disputed, rare, or high-value specimens, providing documented expert opinions that carry legal and commercial weight.
  8. Cross-functional technology integration — lead implementation of CAD, inventory, accounting, and analytical software systems that unify gem processing, grading, and sales data at the organizational level.
  9. Industry knowledge dissemination — author internal guidelines, contribute to professional associations, and mentor senior gem workers to advance the broader field's standards and integrity.
  10. Business performance oversight — analyze production metrics, grading throughput, and market positioning data to guide executive decisions on workforce planning, capital investment, and competitive strategy.

AI-at-Work Competency Framework

Sources:Anthropic Economic IndexAnthropic Economic Index — release_2026_03_24. Opens in new tab.Jadhav & Danve, 2026Skill Automation Feasibility Index — Jadhav & Danve, 2026 (arXiv:2604.06906). Opens in new tab.WEF Skills TaxonomyWEF Skills Taxonomy 2021 — Building a Common Language for Skills at Work. Opens in new tab.

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Sources:Pathsmith™ Durable SkillsPathsmith™ Durable Skills Framework — America Succeeds + CompTIA. Opens in new tab.O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.
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Show O*NET source anchors37 anchors · skillscrosswalk.com

O*NET enrichment · skillscrosswalk.com

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Source anchors that ground each statement

Related titles
Brilliandeer · Brilliandeer Lopper · Clarity Expert · Diamond Assorter · Diamond Cleaner · Diamond Cleaver · Diamond Cutter · Diamond Die Driller · Diamond Die Polisher · Diamond Driller · Diamond Grader · Diamond Heister
RAPIDS apprenticeships
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O*NET skills
Quality Control AnalysisSpeakingActive ListeningCritical ThinkingMonitoring
Knowledge domains
Customer and Personal ServiceProduction and ProcessingEnglish LanguageMathematics
Abilities
Near VisionFinger DexterityArm-Hand SteadinessVisual Color DiscriminationProblem SensitivityFlexibility of ClosureManual DexterityControl PrecisionDeductive ReasoningCategory Flexibility
Work styles
Attention to DetailCautiousnessDependabilityIntegrityAchievement OrientationIntellectual Curiosity
Technology
Accounting softwareData base user interface and query softwareComputer aided design CAD softwareInventory management softwareAnalytical or scientific softwareInternet browser software
Tasks · seed anchors for statements
  1. Examine gems during processing to ensure accuracy of angles and positions of cuts or bores, using magnifying glasses, loupes, or shadowgraphs.
  2. Assign polish, symmetry, and clarity grades to stones, according to established grading systems.
  3. Estimate wholesale and retail value of gems, following pricing guides, market fluctuations, and other relevant economic factors.
  4. Examine gem surfaces and internal structures, using polariscopes, refractometers, microscopes, and other optical instruments, to differentiate between stones, to identify rare specimens, or to detect flaws, defects, or peculiarities affecting gem values.
  5. Identify and document stones' clarity characteristics, using plot diagrams.
  6. Advise customers and others on the best use of gems to create attractive jewelry items.
CIP education codes
47.040850.071350.0714

Sources: O*NET v30.2 (CC BY 4.0), SkillsCrosswalk.com, LER.me®, Anthropic Economic Index, SAFI (Jadhav & Danve, 2026), WEF Skills Taxonomy 2021, Pathsmith™ Durable Skills Framework. © 2026 EBSCOed.