JET - Professional Jewellers' Diploma

This online course builds on knowledge gained from the JET Certificate, taking skills and professionalism to the next level.


Consumer Confidence

  • How to build and maintain consumer confidence
  • How to stay up-to-date with the factors that influence consumer confidence such as conflict diamonds, fair trade gold and ethical jewellery.


  • Advanced knowledge of the four Cs and diamond certification (the fifth C)
  • Diamond treatments and their relevance to a customer at the point of sale
  • Diamond simulants and treatments.


  • What constitutes a good display within a retail jewellery environment.


  • Advanced knowledge of common coloured gemstones
  • How to use gemstone knowledge to your advantage during a sale
  • The various gemological terms used to identify gemstones
  • The differences between a natural and synthetic gemstone and how to explain these differences to customers.

Gold, Platinum, Palladium & Silver

  • The physical and optical properties of gold
  • Understanding the advantages of palladium
  • The properties and fineness qualities of each of the four metals.


  • How to recognise hallmarks and explaining punch marks using Bradbury’s Book of Hallmarks
  • Current legislation in the UK and how to identify conventional hallmarks and their relevance in modern retail.

History of Jewellery

  • External influences that can have a direct effect on the design and production of a piece of jewellery
  • Recognising the distinctive features of jewellery from different periods
  • Gaining familiarity with national and international designers from 1960 to the present day and using this knowledge in a selling environment.


  • The authorities responsible for enforcing the law within the retail jewellery industry
  • Devolping a clear understanding of the difference between criminal and civil law and how they affect the retail jeweller.


  • The NPA (The National Pawnbroking Association) and its benefits
  • The operational and legal requirements of setting up as a pawnbroker
  • Understanding the process involved in pawnbroking, including how to take out a loan, the loan value, loan agreements, unredeemed property, and pawnbroking receipts.


  • The essential elements of security: putting a crime into perspective, using preventative methodology, selling in a safe environment, panic buttons, personal safety mechanisms, vigilance; understanding when you and your colleagues are ‘most at risk.'

Services & Repairs

  • Providing a professional service and repair department
  • Importance of communication with the customer when taking in and giving out repairs.

Trade Related Organisations

  • Trade organisations you will come into contact with as a jeweller.


  • Criteria governing the preparation of an accurate and detailed valuation schedule
  • Understanding the ‘care and safety process’ to ensure you deal with a customer’s goods in a safe and professional manner.
Entry Requirements

Must have completed JET Certificate


Professional Jewellers’ Diploma. Graduates applying for alumni status* may use the initials P.J. Dip. after their name. *Additional fee applies

We know that our customers value our highly trained and expert teams and the qualification gives them added confidence that they are dealing with trained professionals. We will continue to promote JET Certificate and Diploma to all of our colleagues.

Anna Blackburn & Adlestone, Beaverbrooks


Malcolm Jones