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Job Description
Fabricate, finish, or evaluate the quality of gems and diamonds used in jewelry or industrial tools.
Job Details
- The SOC (Standard Occupational Classification) code is 51-9071.06
☝️ Information based on the reference occupation “Gem and Diamond Workers”.
Also Known As…
- Gem and Diamond Workers
- Quality Control Specialist
- Lapidarist
- Gemologist
- Facetor
- Diamond Setter
- Diamond Sawer
- Diamond Polisher
- Diamond Picker
- Diamond Grader
- Diamond Cutter
- Stone Setter Apprentice
- Spotter
- Sapphire Stylus Grinder
- Phonograph Needle Tip Maker
- Pearl Restorer
- Pearl Peller
- Pearl Cutter
- Oliving Machine Operator
- Lathe Operator
- Lapidary Apprentice
- Lapidary
- Jewelry Designer
- Jewelry Cutter
- Jeweler
- Jewel Setter
- Jewel Sawyer
- Jewel Blocker and Sawyer
- Jewel Bearing Maker
- Grader
- Girdler
- Gem Stone Cutter
- Gem Expert
- Gem Cutter
- Gem Carver
- Diamond Sorter
- Diamond Sizer and Grader
- Diamond Setter Apprentice
- Diamond Selector
- Diamond Mounter
- Diamond Driller
- Diamond Die Polisher
- Diamond Die Driller
- Diamond Cleaver
- Diamond Cleaner
- Diamond Assorter
- Brilliandeer Lopper
- Bench Jeweler
Tasks for “Lapidarist”
- Dismantle lapping, boring, cutting, polishing, and shaping equipment and machinery to clean and lubricate it.
- 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.
- Select shaping wheels for tasks, and mix and apply abrasives, bort, or polishing compounds.
- Split gems along pre-marked lines to remove imperfections, using blades and jewelers' hammers.
- Examine gems during processing to ensure accuracy of angles and positions of cuts or bores, using magnifying glasses, loupes, or shadowgraphs.
- Immerse stones in prescribed chemical solutions to determine specific gravities and key properties of gemstones or substitutes.
- Secure stones in metal mountings, using solder.
- Hold stones, gems, dies, or styluses against rotating plates, wheels, saws, or slitters to cut, shape, slit, grind, or polish them.
- Regulate the speed of revolutions and reciprocating actions of drilling mechanisms.
- Estimate wholesale and retail value of gems, following pricing guides, market fluctuations, and other relevant economic factors.
- 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.
- Advise customers and others on the best use of gems to create attractive jewelry items.
- Regrind drill points, and advance drill cutting points according to specifications for channel depths and shapes.
- Locate and mark drilling or cutting positions on stones or dies, using diamond chips and power hand tools.
- Assign polish, symmetry, and clarity grades to stones, according to established grading systems.
- Identify and document stones' clarity characteristics, using plot diagrams.
- Lap girdles on rough diamonds, using diamond girdling lathes.
- 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.
- Place stones in clamps on polishing machines and polish facets of stones, using felt-covered or canvas-covered polishing wheels and polishing compounds such as tripoli and rouge.
- Replace, true, and sharpen blades, drills, and plates.
- Measure sizes of stones' bore holes and cuts to ensure adherence to specifications, using precision measuring instruments.
Related Technology & Tools
- Bead drilling vises
- Arbors
- Gem drills
- Glass bevelers
- Diamond girding lathes
- Lapidary slitters
- Stone polishers
- Diamond saws
- Polishing laps
- Mini bench vises
- Precision file sets
- Cutting laps
- Mini hand clamps
- Ring saws
- Steam cleaners
- Thermal conductivity testers
- Ultraviolet UV lights
- Ultrasonic cleaners
- Trim saws
- Spectrophotometers
- Revolving saws
- Inspection microscopes
- Sphere machines
- Chipping hammers
- Jewelers kits
- Polishing wheels
- Digital micrometers
- Jewelers' mandrels
- Handheld magnifiers
- Glass cutting saws
- Digital balances
- Piezo microtorches
- Optically magnified facet machines
- Precision tape measures
- Vibrating laps
- Glass polishers
- Jewelers' loupes
- Angle grinders
- Faceting machines
- Rock picks
- Laser engraving tools
- Cross peen hammers
- Vibratory tumblers
- Crack hammers
- Precision rulers
- Diamond grinders
- Jewelers' hammers
- Mini drills
- Specific gravity liquid sets
- Bench refractometers
- Grinders
- Belt sanders
- Digital calipers
- Lapidary units
- Digital still cameras
- Digital polariscopes
- GemCad
- Web browser software
- Jewelry design software
- Inventory tracking software
- Spectrophotometer analysis software
- Business accounting software
- Gem identification databases