Smurfs amber bracelets are natural. Impurities in amber are formed by bubbles and impurities during the formation process, while impurities in Smurfs amber bracelets are produced by special minerals and trace elements during the formation process. These minerals and trace elements are wrapped in resin during the formation process, forming a unique blue color. Therefore, the Smurfs amber bracelet is natural.

If you want to know more about amber and amber bracelets, you can go to a professional gem appraisal agency or a professional jewelry store for consultation.