An investigation by the UK’s Sunday Times has renewed serious concerns about jewellery safety after independent laboratory tests revealed dangerously high levels of cadmium in pieces sold through major online marketplaces, including Amazon and TikTok Shop. Some of the items tested were marketed as genuine 925 sterling silver, yet the results showed contamination well above acceptable limits.
The newspaper commissioned testing at the Birmingham Assay Office, which analysed a range of jewellery bought from both platforms. Several items contained cadmium concentrations that far exceeded the UK legal limit of 0.01%, a threshold set to protect consumers from exposure to this toxic heavy metal. The discovery has prompted renewed questions about product verification and safety checks on fast-growing e-commerce sites.
Among the most striking results was a ring sold on Amazon as sterling silver that laboratory analysis found to contain around 92.3% cadmium. In addition, bracelet charms purchased from TikTok Shop and advertised as 925 silver were reported to contain roughly 33% cadmium. Other items tested—such as charms labeled Tibetan Silver and silver-coloured alloy earrings—also exceeded permitted cadmium levels, showing a pattern of dangerous mislabelling and potential consumer harm.
Cadmium is classified as a carcinogenic substance, and medical experts warn that prolonged or repeated exposure can damage vital organs, including the kidneys, liver and lungs. Health professionals stress that the risk is heightened when contaminated jewellery is worn in direct contact with pierced skin, for example in earrings or body jewellery, since this increases the likelihood of metal ions entering the body.
The investigation adds to growing scrutiny of online marketplaces and the challenges they face in policing product safety. Regulators and industry stakeholders have repeatedly flagged the volume of imported, low-cost jewellery sold through third-party sellers as difficult to monitor. The findings illustrate ongoing shortcomings in enforcement and the need for better quality assurance, clearer labelling and more robust checks to prevent hazardous goods from reaching consumers.
In response to the Sunday Times report, TikTok Shop removed the identified seller and issued a recall for the affected product, stating the item violated its marketplace policies. Amazon said it requires sellers to comply with applicable product safety regulations and confirmed it had taken down the jewellery identified by the investigation after completing its own review. Both platforms emphasized their processes for addressing unsafe listings, while regulators consider whether further action is necessary to protect consumers.
Consumer safety advocates say the episode highlights the importance of vigilance when buying jewellery online. They recommend that shoppers check seller ratings, ask for independent certification for precious metals, and be cautious of unusually low prices for items promoted as sterling silver or other precious metal. Retailers and marketplaces are urged to strengthen verification procedures, apply consistent testing standards and ensure clear, accurate product descriptions to prevent dangerous misrepresentation.
The report also underscores the need for better public awareness about toxic metals in consumer products. Cadmium is not commonly discussed among everyday shoppers, yet the consequences of exposure can be severe. Policymakers, enforcement agencies and online retailers face pressure to coordinate more effectively to detect, trace and remove hazardous items. Improved laboratory testing access, mandatory disclosure of metal content and stricter penalties for mislabelling could all help reduce the risk posed by contaminated jewellery.
As online retail continues to expand, so does the potential for counterfeit, substandard or unsafe products to circulate. This investigation serves as a reminder that product safety must keep pace with convenience and that strengthened oversight is essential to protect consumers from hazardous materials such as cadmium in jewellery sold through popular e-commerce platforms.