Run a structured screening checklist instead of trusting one “gold test.” Mark the evidence you actually have and use the combined result to decide whether the item needs stronger verification.
More independent evidence gives a stronger assessment.
Check only evidence you actually observed. Do not check a box because you expect the item to pass. The purpose is to prevent one attractive clue — such as a 750 stamp — from overpowering contradictory evidence.
Marks can be useful, but markings can be copied or misused. A proper hallmark should be considered together with construction, wear and independent tests.
A magnet, density test and XRF do not measure the same physical property. Independent evidence that agrees is more useful than repeated versions of the same weak clue.
Use multiple independent clues and tests.
Strong attraction can be a warning sign but is not a complete diagnosis.
No. It is useful evidence but can be counterfeit.
No single home test is universally reliable.
When elemental composition matters enough to justify professional measurement.