Diamonds are processed from ores, some of which were formed by long-term low-intensity radiation in the earth's crust during millions of years of geological evolution, and some of which have more than normal radioactivity. Not only diamonds, but also other precious stones may have this problem. Experts pointed out that the more precious stones, the stronger the radioactivity and the greater the harm to human body.
In order to make ornaments more dazzling, some jewelers even put gems that are easily activated, such as topaz and spodumene, into atomic reactors, and let neutrons irradiate them as much as possible to promote their brilliance and raise their value. The amount of radiation received by a person wearing this kind of gem jewelry may be equivalent to that of a nuclear worker for one year. According to experts, if women wear jewelry necklaces with excessive radioactivity around their necks and chests, it will lead to breast cancer and lung cancer.
Not all irradiated gems are unavailable. According to the staff of a gem testing institution, irradiation treatment is a common treatment method in gem processing. It is safe to leave it beyond the radioactive half-life after irradiation. All irradiated gems should be marked on the appraisal certificate. It is not excluded that some unscrupulous businessmen sell jewelry with excessive radioactivity for commercial interests. Therefore, it must be tested by an authoritative organization (in line with national standards) before it can be purchased with confidence.