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JET Diploma

Who is this course suitable for?

This online course is for students who have completed the JET Certificate and are aiming to be awarded the Professional Jeweller's Diploma. 

Enrolment Period:

All year


12 months (although it can be completed sooner if preferred)

Course Content:

 Alternative Shopping

Be aware of all the ways in which jewellery can be sold to the general public and the advantages and disadvantages of each method.

Consumer Confidence

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


Increased understanding of the four C’s and diamond certification (the fifth C). How to become familiar with diamond treatments so that they may be explained to a customer at the point of sale. Diamond simulants and treatments.


Understand what constitutes a good display within the context of a retail jewellery environment. Know the critical considerations which must be taken into account when arranging a window display.


What are the most common coloured gemstones? Adopt a sales method which uses gemstone knowledge to your advantage during a sale. Understand the various gemmological terms used to identify gemstones. Explain to a customer the differences between a natural and synthetic gemstone. Understand beauty, rarity, durability and desirability.

Gold, Platinum, Palladium & Silver

The physical and optical properties of gold. The benefits of 18 carat yellow and white gold over 9ct gold.  Understand platinum and up-sell from 18ct white gold.  Understand the advantages of palladium. Properties and fineness qualities of the four metals.


Understand the development of hallmarks, recognise hallmarks, explain punch marks (using Bradbury’s book of Hallmarks). Be aware of current legislation in the UK and identify convention hallmarks and their relevance in modern retail.

History of Jewellery

External influences that can have a direct affect on the design and production of a piece of  jewellery. Recognise the distinctive features of jewellery of different periods. National and international designers from 1960 to the present day and using this knowledge in a selling environment.


Understand who is responsible for enforcing the Law. Develop a clear understanding of the difference between Criminal & Civil Law and how they affect the retail jeweller. Money laundering.  Importance and relevance of Price Marking, Misleading Price Indicators, Consumer Code Practice, Hallmarking Act 1973, Theft Act 1968 section 22, Stolen property, Cheques & Credit Cards, Fraud. Content and implications of the TORTS (Interference with Goods Act 1977) and how it applies to the jewellery trade.


Develop an understanding of the NPA (The National Pawnbroking Association) and its benefits. Understand the requirements of setting up as a pawnbroker both functional and legal. Develop a clear understanding and insight into the process involved in pawnbroking, including taking out a loan, the loan value, the loan agreement, unredeemed property, Pawnbroking receipts.


Be aware of the essential elements of security (putting the crime into perspective, using preventative methodology, selling in a safe environment, panic buttons, personal safety mechanisms, vigilance, when are you and your colleagues ‘most at risk').

Services & Repairs

Providing a quality, professional service & repair department.  Importance of communication with the customer when taking in and giving out repairs. Handling repairs. Processes undertaken by the practical working jeweller.

Trade related organisations

Learn about the trade organisations you will come into contact within your work as a jeweller.


Understand the criteria that governs the preparation of an accurate and detailed valuation schedule. Guide the customer in selecting the correct valuation to suit their requirements. Understand the ‘care and safety process’ to ensure you deal with the customers' goods in a safe and professional manner.

Study Pack:

‘Retail Jewellers Guide’ by Kenneth Blakemore


Successful candidates will be awarded the Professional Jewellers' Diploma and may use the initials P.J. Dip. after their name. In order to use these initials, graduates must apply for Alumni status (fee applies).


© 2017
The National Association of Jewellers
Head Office: Federation House
10 Vyse Street
Birmingham, B18 6LT, UK

London Office: 45 Britton Street, London EC1M 5NA

Birmingham Office: 0121 237 1110
London Office: 020 7613 4445
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