Day-to-day work ranges from examining gems under microscopes, polariscopes, or refractometers to grade clarity, symmetry, and polish, to advising retail customers on how a stone's cut and characteristics affect its use in jewelry. Workers who specialize in valuation spend more time researching market fluctuations and pricing guides, while those focused on cutting and finishing spend more time at a bench verifying angles and bore accuracy on the stones themselves. Precision matters at every stage, since a misjudged cut or grade directly affects a gem's worth.
Pros
Skilled, detail-oriented craft combining hands-on grading with customer-facing expertise
Pay can reach the high $80ks for experienced graders and cutters
Entry possible through vocational training or apprenticeship rather than a four-year degree
Cons
Employment is projected to shrink over the next decade (-5.5%)
Above-average hours, often exceeding a standard 40-hour work week
Regular exposure to hazardous equipment and contaminants despite the desk-based setting
A typical day
The lamp and loupe come on at 8: the first stone of the day is a one-carat round brilliant graded for clarity — inclusions mapped under 10x, color compared against master stones in controlled light, the call recorded that will move the price by thousands. Midday shifts to the cutting bench, where a sapphire gets oriented on the dop: the cutter studies the rough for an hour before touching wheel to stone, because the geometry chosen now decides whether the color faces up rich or washed out. The afternoon holds a jeweler consultation — advising which of three emeralds will survive a ring setting — and a recheck of yesterday's grading under fresh eyes. Precision, patience, and a trained eye are the entire inventory.
Tasks at the job
Advise customers and others on the best use of gems to create attractive jewelry items.
Examine gems during processing to ensure accuracy of angles and positions of cuts or bores, using magnifying glasses, loupes, or shadowgraphs.
Assign polish, symmetry, and clarity grades to stones, according to established grading systems.
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.
Identify and document stones' clarity characteristics, using plot diagrams.
Workplace & working conditions
Work happens indoors in a climate-controlled setting, and most of the day is spent sitting at a desk. The role involves regular exposure to hazardous equipment or conditions and contaminants.
There's a regular, moderate amount of time pressure. Precision and accuracy are essential to the work.
Education necessary or common
Vocational training, apprenticeship, or associate's degree
Licenses & certifications
GIA Graduate Gemologist (GG) — the industry's flagship credential