# Jewelers and Precious Stone and Metal Workers > Design, fabricate, adjust, repair, or appraise jewelry, gold, silver, other precious metals, or gems. - Code: 51-9071.00 (O*NET-SOC; SOC 2018 51-9071) - Family: [Production](https://foundation.org.ai/occupations#family-51), one of its 114 occupations - Tasks: 29 tasks (26 core and 3 supplemental) - Page: https://foundation.org.ai/occupations/51-9071.00 - JSON: https://foundation.org.ai/data/tasks/51-9071.00.json ## What the work is made of 1. Position stones and metal pieces, and set, mount, and secure items in place, using setting and hand tools. Core task · Task 23620 · Rated by O*NET analysts, November 2020 2. Smooth soldered joints and rough spots, using hand files and emery paper, and polish smoothed areas with polishing wheels or buffing wire. Core task · Task 23621 · Rated by O*NET analysts, November 2020 3. Create jewelry from materials such as gold, silver, platinum, and precious or semiprecious stones. Core task · Task 23622 · Rated by O*NET analysts, November 2020 4. Make repairs, such as enlarging or reducing ring sizes, soldering pieces of jewelry together, and replacing broken clasps and mountings. Core task · Task 23623 · Rated by O*NET analysts, November 2020 5. Clean and polish metal items and jewelry pieces, using jewelers' tools, polishing wheels, and chemical baths. Core task · Task 23624 · Rated by O*NET analysts, November 2020 6. Cut and file pieces of jewelry such as rings, brooches, bracelets, and lockets. Core task · Task 23625 · Rated by O*NET analysts, November 2020 7. Select and acquire metals and gems for designs. Core task · Task 23626 · Rated by O*NET analysts, November 2020 8. Compute costs of labor and materials to determine production costs of products and articles. Core task · Task 23627 · Rated by O*NET analysts, November 2020 9. Examine assembled or finished products to ensure conformance to specifications, using magnifying glasses or precision measuring instruments. Core task · Task 23628 · Rated by O*NET analysts, November 2020 10. Pierce and cut open designs in ornamentation, using hand drills and scroll saws. Core task · Task 23629 · Rated by O*NET analysts, November 2020 11. Construct preliminary models of wax, metal, clay, or plaster, and form sample castings in molds. Core task · Task 23630 · Rated by O*NET analysts, November 2020 12. Pour molten metal alloys or other materials into molds to cast models of jewelry. Core task · Task 23631 · Rated by O*NET analysts, November 2020 13. Shape and straighten damaged or twisted articles by hand or using pliers. Core task · Task 23632 · Rated by O*NET analysts, November 2020 14. Soften metal to be used in designs by heating it with a gas torch and shape it, using hammers and dies. Core task · Task 23633 · Rated by O*NET analysts, November 2020 15. Determine appraised values of diamonds and other gemstones based on price guides, market fluctuations, and stone grades and rarity. Core task · Task 23634 · Rated by O*NET analysts, November 2020 16. Grade stones based on their color, perfection, and quality of cut. Core task · Task 23635 · Rated by O*NET analysts, November 2020 17. Plate articles such as jewelry pieces and watch dials, using silver, gold, nickel, or other metals. Core task · Task 23636 · Rated by O*NET analysts, November 2020 18. Write or modify design specifications such as the metal contents and weights of items. Core task · Task 23637 · Rated by O*NET analysts, November 2020 19. Create new jewelry designs and modify existing designs, using computers as necessary. Core task · Task 23638 · Rated by O*NET analysts, November 2020 20. Buy and sell jewelry, or serve as agents between buyers and sellers. Core task · Task 23639 · Rated by O*NET analysts, November 2020 21. Record the weights and processing times of finished pieces. Core task · Task 23640 · Rated by O*NET analysts, November 2020 22. Lay out designs on metal stock, and cut along markings to fabricate pieces used to cast metal molds. Core task · Task 23641 · Rated by O*NET analysts, November 2020 23. Mark, engrave, or emboss designs on metal pieces such as castings, wire, or jewelry, following specifications. Core task · Task 23642 · Rated by O*NET analysts, November 2020 24. Cut designs in molds or other materials to be used as models in the fabrication of metal and jewelry products. Core task · Task 23643 · Rated by O*NET analysts, November 2020 25. Design and fabricate molds, models, and machine accessories, and modify hand tools used to cast metal and jewelry pieces. Core task · Task 23644 · Rated by O*NET analysts, November 2020 26. Research and analyze reference materials, and consult with interested parties to develop new products or modify existing designs. Core task · Task 23645 · Rated by O*NET analysts, November 2020 27. Weigh, mix, and melt metal alloys or materials needed for jewelry models. Supplemental task · Task 23647 · Rated by O*NET analysts, November 2020 28. Rotate molds to distribute alloys and to prevent formation of air pockets. Supplemental task · Task 23648 · Rated by O*NET analysts, November 2020 29. Rout out locations where parts are to be joined to items, using routing machines. 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