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Date: 12/16/2025

Gem and Diamond Workers

Fabricate, finish, or evaluate the quality of gems and diamonds used in jewelry or industrial tools.

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    Work Activities

    Work Activities

    • Examine gems during processing to ensure accuracy of angles and positions of cuts or bores, using magnifying glasses, loupes, or shadowgraphs.
    • Estimate wholesale and retail value of gems, following pricing guides, market fluctuations, and other relevant economic factors.
    • 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.
    • Examine diamonds or gems to ascertain the shape, cut, and width of cut stones, or to select the cuts that will result in the biggest, best quality stones.
    • Immerse stones in prescribed chemical solutions to determine specific gravities and key properties of gemstones or substitutes.
    • Select shaping wheels for tasks, and mix and apply abrasives, bort, or polishing compounds.
    • Dismantle lapping, boring, cutting, polishing, and shaping equipment and machinery to clean and lubricate it.
    • Hold stones, gems, dies, or styluses against rotating plates, wheels, saws, or slitters to cut, shape, slit, grind, or polish them.
    • Hold stones, gems, dies, or styluses against rotating plates, wheels, saws, or slitters to cut, shape, slit, grind, or polish them.
    • Select shaping wheels for tasks, and mix and apply abrasives, bort, or polishing compounds.
    • Select shaping wheels for tasks, and mix and apply abrasives, bort, or polishing compounds.
    • Advise customers and others on the best use of gems to create attractive jewelry items.
    • Assign polish, symmetry, and clarity grades to stones, according to established grading systems.
    • Identify and document stones' clarity characteristics, using plot diagrams.
    • Identify and document stones' clarity characteristics, using plot diagrams.
    • Sort rough diamonds into categories based on shape, size, color, and quality.
    • Secure gems or diamonds in holders, chucks, dops, lapidary sticks, or blocks for cutting, polishing, grinding, drilling, or shaping.
    • Measure sizes of stones' bore holes and cuts to ensure adherence to specifications, using precision measuring instruments.

    Skills

    • Writing

      Writing things for co-workers or customers.

    • Management of Financial Resources

      Making spending decisions and keeping track of what is spent.

    • Systems Analysis

      Figuring out how a system should work and how changes in the future will affect it.

    • Operations Analysis

      Figuring out what a product or service needs to be able to do.

    • Persuasion

      Talking people into changing their minds or their behavior.

    • Science

      Using scientific rules and strategies to solve problems.

    • Critical Thinking

      Thinking about the pros and cons of different ways to solve a problem.

    • Service Orientation

      Looking for ways to help people.

    • Repairing

      Repairing machines or systems using the right tools.

    • Mathematics

      Using math to solve problems.

    • Reading Comprehension

      Reading work-related information.

    • Active Learning

      Figuring out how to use new ideas or things.

    • Negotiation

      Bringing people together to solve differences.

    • Technology Design

      Making equipment and technology useful for customers.

    • Operation and Control

      Using equipment or systems.

    • Judgment and Decision Making

      Thinking about the pros and cons of different options and picking the best one.

    • Troubleshooting

      Figuring out what is causing equipment, machines, wiring, or computer programs to not work.

    • Equipment Selection

      Deciding what kind of tools and equipment are needed to do a job.

    • Programming

      Writing computer programs.

    • Complex Problem Solving

      Noticing a problem and figuring out the best way to solve it.

    • Operations Monitoring

      Watching gauges, dials, or display screens to make sure a machine is working.

    • Systems Evaluation

      Measuring how well a system is working and how to improve it.

    • Speaking

      Talking to others.

    • Learning Strategies

      Using the best training or teaching strategies for learning new things.

    • Active Listening

      Listening to others, not interrupting, and asking good questions.

    • Monitoring

      Keeping track of how well people and/or groups are doing in order to make improvements.

    • Time Management

      Managing your time and the time of other people.

    • Management of Personnel Resources

      Selecting and managing the best workers for a job.

    • Management of Material Resources

      Managing equipment and materials.

    • Instructing

      Teaching people how to do something.

    • Installation

      Installing equipment, machines, wiring, or computer programs.

    • Equipment Maintenance

      Planning and doing the basic maintenance on equipment.

    • Quality Control Analysis

      Testing how well a product or service works.

    • Social Perceptiveness

      Understanding people's reactions.

    • Coordination

      Changing what is done based on other people's actions.

    WorkKeys®

    Applied Math
    4
    Workplace Documents
    4
    Graphic Literacy
    4

    Abilities

    • Selective Attention

      Paying attention to something without being distracted.

    • Rate Control

      Changing when and how fast you move based on how something else is moving.

    • Reaction Time

      Quickly moving your hand, finger, or foot based on a sound, light, picture or other command.

    • Flexibility of Closure

      Seeing hidden patterns.

    • Visualization

      Imagining how something will look after it is moved around or changed.

    • Dynamic Flexibility

      Quickly and repeatedly bending, stretching, twisting, or reaching out with your body, arms, and/or legs.

    • Peripheral Vision

      Seeing something to your side when your are looking ahead.

    • Hearing Sensitivity

      Telling the difference between sounds.

    • Problem Sensitivity

      Noticing when problems happen.

    • Oral Comprehension

      Listening and understanding what people say.

    • Oral Expression

      Communicating by speaking.

    • Written Comprehension

      Reading and understanding what is written.

    • Sound Localization

      Noticing the direction that a sound came from.

    • Auditory Attention

      Paying attention to one sound while there are other distracting sounds.

    • Manual Dexterity

      Holding or moving items with your hands.

    • Control Precision

      Quickly changing the controls of a machine, car, truck or boat.

    • Arm-Hand Steadiness

      Keeping your arm or hand steady.

    • Information Ordering

      Ordering or arranging things.

    • Perceptual Speed

      Quickly comparing groups of letters, numbers, pictures, or other things.

    • Gross Body Coordination

      Moving your arms, legs, and mid-section together while your whole body is moving.

    • Depth Perception

      Deciding which thing is closer or farther away from you, or deciding how far away it is from you.

    • Multilimb Coordination

      Using your arms and/or legs together while sitting, standing, or lying down.

    • Time Sharing

      Doing two or more things at the same time.

    • Response Orientation

      Quickly deciding if you should move your hand, foot, or other body part.

    • Originality

      Creating new and original ideas.

    • Number Facility

      Adding, subtracting, multiplying, or dividing.

    • Fluency of Ideas

      Coming up with lots of ideas.

    • Deductive Reasoning

      Using rules to solve problems.

    • Speed of Closure

      Quickly knowing what you are looking at.

    • Category Flexibility

      Grouping things in different ways.

    • Spatial Orientation

      Knowing where things are around you.

    • Stamina

      Exercising for a long time without getting out of breath.

    • Trunk Strength

      Using your lower back and stomach.

    • Explosive Strength

      Jumping, sprinting, or throwing something.

    • Gross Body Equilibrium

      Keeping your balance or staying upright.

    • Glare Sensitivity

      Seeing something even if there is a glare or very bright light.

    • Dynamic Strength

      Exercising for a long time without your muscles getting tired.

    • Finger Dexterity

      Putting together small parts with your fingers.

    • Memorization

      Remembering words, numbers, pictures, or steps.

    • Mathematical Reasoning

      Choosing the right type of math to solve a problem.

    • Speed of Limb Movement

      Quickly moving your arms and legs.

    • Speech Clarity

      Speaking clearly.

    • Far Vision

      Seeing details that are far away.

    • Near Vision

      Seeing details up close.

    • Inductive Reasoning

      Making general rules or coming up with answers from lots of detailed information.

    • Wrist-Finger Speed

      Making fast, simple, repeated movements of your fingers, hands, and wrists.

    • Written Expression

      Communicating by writing.

    • Visual Color Discrimination

      Noticing the difference between colors, including shades and brightness.

    • Static Strength

      Lifting, pushing, pulling, or carrying.

    • Extent Flexibility

      Bending, stretching, twisting, or reaching with your body, arms, and/or legs.

    • Night Vision

      Seeing at night or under low light.

    • Speech Recognition

      Recognizing spoken words.

    Knowledge

    • Administration and Management

      Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.

    • Building and Construction

      Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.

    • English Language

      Knowledge of the structure and content of the English language including the meaning and spelling of words, and rules of composition and grammar.

    • Telecommunications

      Knowledge of transmission, broadcasting, switching, control, and operation of telecommunications systems.

    • Sociology and Anthropology

      Knowledge of group behavior and dynamics, societal trends and influences, human migrations, ethnicity, cultures, and their history and origins.

    • History and Archeology

      Knowledge of historical events and their causes, indicators, and effects on civilizations and cultures.

    • Public Safety and Security

      Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.

    • Law and Government

      Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.

    • Communications and Media

      Knowledge of media production, communication, and dissemination techniques and methods. This includes alternative ways to inform and entertain via written, oral, and visual media.

    • Medicine and Dentistry

      Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures.

    • Geography

      Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life.

    • Customer and Personal Service

      Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.

    • Mechanical

      Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

    • Economics and Accounting

      Knowledge of economic and accounting principles and practices, the financial markets, banking, and the analysis and reporting of financial data.

    • Philosophy and Theology

      Knowledge of different philosophical systems and religions. This includes their basic principles, values, ethics, ways of thinking, customs, practices, and their impact on human culture.

    • Therapy and Counseling

      Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance.

    • Production and Processing

      Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.

    • Physics

      Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub-atomic structures and processes.

    • Design

      Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.

    • Food Production

      Knowledge of techniques and equipment for planting, growing, and harvesting food products (both plant and animal) for consumption, including storage/handling techniques.

    • Engineering and Technology

      Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.

    • Administrative

      Knowledge of administrative and office procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and workplace terminology.

    • Sales and Marketing

      Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems.

    • Biology

      Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment.

    • Transportation

      Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits.

    • Psychology

      Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders.

    • Foreign Language

      Knowledge of the structure and content of a foreign (non-English) language including the meaning and spelling of words, rules of composition and grammar, and pronunciation.

    • Fine Arts

      Knowledge of the theory and techniques required to compose, produce, and perform works of music, dance, visual arts, drama, and sculpture.

    • Chemistry

      Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.

    • Education and Training

      Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects.

    • Computers and Electronics

      Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.

    • Personnel and Human Resources

      Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems.

    • Mathematics

      Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

    Career Video

    Additional videos and more information available on CareerOneStop

    Pay

    • Ohio Annual Salary 46200/yr
    • Typical Salary
    • Ohio Hourly Wage 22.21/hr
    • Typical Hourly Wage

    Ohio Employment Trends

    • Currently Employed 1,520
    • Yearly Projected Openings 210

    Typical Education

    Personality

    Realistic: People interested in this work like activities that include practical, hands-on problems and solutions.They do well at jobs that need:
    • Integrity
    • Attention to Detail
    • Dependability
    • Persistence
    • Independence
    • Cooperation

    Tools

    • Angle grinder
    • Arbors
    • Automatic lathe or chucking machine
    • Belt sander
    • Bench refractometers or polarimeters
    • Bench vises
    • Blow torch
    • Calipers
    • Conductivity meters
    • Cross and straight pein hammer
    • Cutting machines
    • Digital cameras
    • Drill vise
    • Engraving machines
    • Faceting laps
    • Faceting machines
    • General tool kits
    • Grinders
    • Grinding machines
    • Grinding or polishing machines
    • Hammers
    • Hand clamps
    • Hydrometers
    • Jewelry mandrels
    • Laboratory balances
    • Loupes
    • Magnifiers
    • Mechanical or ultrasonic metal cleaner
    • Micrometers
    • Monocular microscopes
    • Picks
    • Polariscopes
    • Power buffers
    • Power drills
    • Power saws
    • Precision file
    • Pressure or steam cleaners
    • Rulers
    • Saws
    • Spectrophotometers
    • Tape measures
    • Tumblers or polishers
    • Ultraviolet UV lamps

    Technology

    • Accounting software
    • Analytical or scientific software
    • Computer aided design CAD software
    • Data base user interface and query software
    • Internet browser software
    • Inventory management software

    Tags

    • Apprenticeships are available for this occupation. These programs can help you get hands-on experience and build your skills.

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