Examine physical characteristics of gemstones or precious metals.

Examine physical characteristics of gemstones or precious metals. is a detailed work activity in O*NET — a concrete unit of work shared across 1 occupations and seen in 5 occupation-specific tasks. It rolls up into the broader work activity Inspect characteristics or conditions of materials or products. in Inspecting Equipment, Structures, or Materials .

Detailed work activities are the most granular shared layer in O*NET's work-activity hierarchy (Generalized → Intermediate → Detailed → occupation-specific task). The figures below describe how this activity shows up across the economy and what independent studies measure about AI and this kind of work — not a prediction that the work will be automated.

AI exposure

Of the 5 tasks under this activity that the OpenAI / Eloundou “GPTs are GPTs” study rated, 3 (60%) are flagged as directly exposed to language models (E1) or exposed via model-powered tools (E2).

Exposure estimates overlap with model capabilities — whether a model could speed the task up — not whether the work will be done by software. Observed AI use is augmentation and assistance today, not jobs replaced.

Member tasks

Occupation-specific tasks O*NET maps to this detailed work activity, most important first.

• Examine gems during processing to ensure accuracy of angles and positions of cuts or bores, using magnifying glasses, loupes, or shadowgraphs. · Gem and Diamond Workers · importance 4.7 · no direct exposure
• 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. · Gem and Diamond Workers · importance 4.5 · exposure with tools
• Immerse stones in prescribed chemical solutions to determine specific gravities and key properties of gemstones or substitutes. · Gem and Diamond Workers · importance 4.4 · no direct exposure
• 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. · Gem and Diamond Workers · importance 4.3 · exposure with tools
• Identify and document stones' clarity characteristics, using plot diagrams. · Gem and Diamond Workers · importance 4.3 · exposure with tools

Occupations that perform this

• Gem and Diamond Workers

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-examine-physical-characteristics-of-gemstones-or-precious-metals,
  title  = {Examine physical characteristics of gemstones or precious metals.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/detailed-activities/examine-physical-characteristics-of-gemstones-or-precious-metals}
}