Зачем нужна добровольная сертификация?
Voluntary certification is a service performed basing on a civil contract between a customer and an executor (contractor), which grant the compliance with the requirements of technical regulations, standards, etc. The document of the certification result basing on the results of the expertise is a certificate issued on the basis of the test report (expert report).
Voluntary certification in the precious stones market is needed to ensure consumer rights. Certification allows you to identify (or maximally hamper) both goods seller unfair competition and fraudulent misrepresentation or direct forgery.