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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
- 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
- Lapidarist
- 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”
- 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.
- Immerse stones in prescribed chemical solutions to determine specific gravities and key properties of gemstones or substitutes.
- Advise customers and others on the best use of gems to create attractive jewelry items.
- Estimate wholesale and retail value of gems, following pricing guides, market fluctuations, and other relevant economic factors.
- Replace, true, and sharpen blades, drills, and plates.
- 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.
- Select shaping wheels for tasks, and mix and apply abrasives, bort, or polishing compounds.
- Measure sizes of stones' bore holes and cuts to ensure adherence to specifications, using precision measuring instruments.
- Locate and mark drilling or cutting positions on stones or dies, using diamond chips and power hand tools.
- Sort rough diamonds into categories based on shape, size, color, and quality.
- Assign polish, symmetry, and clarity grades to stones, according to established grading systems.
- Secure gems or diamonds in holders, chucks, dops, lapidary sticks, or blocks for cutting, polishing, grinding, drilling, or shaping.
- Identify and document stones' clarity characteristics, using plot diagrams.
- Examine gems during processing to ensure accuracy of angles and positions of cuts or bores, using magnifying glasses, loupes, or shadowgraphs.
- 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.
- Hold stones, gems, dies, or styluses against rotating plates, wheels, saws, or slitters to cut, shape, slit, grind, or polish them.
- Secure stones in metal mountings, using solder.
- Lap girdles on rough diamonds, using diamond girdling lathes.
- Dismantle lapping, boring, cutting, polishing, and shaping equipment and machinery to clean and lubricate it.
- Regulate the speed of revolutions and reciprocating actions of drilling mechanisms.
- Split gems along pre-marked lines to remove imperfections, using blades and jewelers' hammers.
- Regrind drill points, and advance drill cutting points according to specifications for channel depths and shapes.
Related Technology & Tools
- Precision file sets
- Digital calipers
- Bench refractometers
- Lapidary slitters
- Diamond saws
- Rock picks
- Faceting machines
- Mini bench vises
- Piezo microtorches
- Chipping hammers
- Digital still cameras
- Diamond grinders
- Cross peen hammers
- Trim saws
- Precision rulers
- Cutting laps
- Digital polariscopes
- Arbors
- Ultrasonic cleaners
- Lapidary units
- Polishing wheels
- Thermal conductivity testers
- Handheld magnifiers
- Digital balances
- Steam cleaners
- Vibratory tumblers
- Digital micrometers
- Polishing laps
- Laser engraving tools
- Specific gravity liquid sets
- Grinders
- Inspection microscopes
- Glass bevelers
- Jewelers' mandrels
- Glass polishers
- Jewelers' hammers
- Ultraviolet UV lights
- Bead drilling vises
- Gem drills
- Optically magnified facet machines
- Mini drills
- Diamond girding lathes
- Precision tape measures
- Angle grinders
- Stone polishers
- Jewelers kits
- Belt sanders
- Sphere machines
- Ring saws
- Glass cutting saws
- Spectrophotometers
- Jewelers' loupes
- Mini hand clamps
- Vibrating laps
- Revolving saws
- Crack hammers
- Gem identification databases
- GemCad
- Business accounting software
- Inventory tracking software
- Web browser software
- Jewelry design software
- Spectrophotometer analysis software