A hallmark shows the fineness; when in doubt, test.
On jewellery, fineness is usually stamped in parts per thousand: 585 (14K), 750 (18K), 916 (22K), 999 (24K). The stamp says how many parts out of a thousand are pure gold. Pieces with no stamp, a worn stamp or doubtful origin should be tested.
Hallmarking rules differ by country. Confirm the current rules in Romania with the competent authority.
Touchstone and acid test. Quick, approximate result.
XRF analyser. Measures fineness without damaging the surface, but plating can mislead it.
Fire assay (cupellation). The most accurate method; it uses up the sample.
Questions about selling scrap gold or buying 14K gold jewellery wholesale? Contact Ervam Gold or use our scrap gold calculator.