Introduction to JET 1


Why choose JET 1?

✔ Build a strong foundation across the jewellery industry: in retail, the workshop or operational support

✔ Provide jewellery industry staff with a thorough knowledge of jewellery products and manufacturing techniques, giving them the tools to help and advise customers and clients more effectively

✔ Offer an engaging and supportive online learning environment accessible to full-time and part-time staff

✔ Part of a suite of qualifications helping signpost a clear career pathway within the industry.


Edu quote template just text JET 1b


Suitable for: Students wanting to build a strong foundation across the jewellery industry

Entry Requirements: None

Duration: 6 months (can be completed sooner)

Assessment: Five written assignments across 12 modules

Fee: Non-NAJ Member £615+VAT, NAJ Member £400+VAT

JET Certificate - Enrolement rate


The course consists of 12 modules, giving new jewellery industry professionals a grounding in jewellery products, gemstones and diamonds and modern manufacturing techniques.

History of Jewellery
  • How to deal with a robbery or armed raid
  • The different methods for protecting stock, including physical protection, alarm protection and security procedures
  • The different methods for protecting staff, including opening and closing procedures, vehicle safety procedures and lone working procedures
  • The different types of jewellery on offer
  • Manufacturing techniques and fastenings available for the different types of jewellery
  • Common questions that a customer might ask you
  • The different styles and types of rings, including wedding rings, engagement rings, eternity rings and signet rings
  • Common nomenclature when talking about rings, including different profiles and shapes, and the different parts of a ring
  • Different stone settings
  • How to measure a customer’s ring size How to sell a ring
  • The physical and optical properties of diamonds
  • Diamond formation and production
  • The four C’s (carat weight, cut, clarity and colour) and how they impact price
  • Different types of diamond cut
  • Consumer confidence
  • Diamond simulants
  • The difference between a mineral and an organic gemstone
  • Physical and optical properties of different gemstones and gemstone families
  • Synthetic gemstones
  • Gemstone treatments
  • How to sell coloured gemstones
Gold, Platinum, Palladium and Silver
  • The formation and production of precious metals
  • The history of precious metals
  • The difference between the physical and optical properties of gold, platinum, palladium and silver
  • Hallmarks used for precious metals
  • Selling and after-sales care of precious metals
  • Non-precious metals
  • The purpose of hallmarking
  • The history of hallmarking
  • What Assay Offices do, and where they are based
  • Different compulsory hallmarks, including the sponsor mark, town mark and standard mark
  • Methods for testing and hallmarking items
  • How to use Bradbury’s Book of Hallmarks
  • The history, styles and influence of the big jewellery design houses
  • Contemporary designers
  • The definition of bespoke jewellery
  • How to sell bespoke and designer jewellery
  • All stages of the manufacturing process, from creating the mould to polishing the finished article
  • Different methods of producing a mould for different volumes and types of production
  • Hand making and finishing techniques
  • Die stamping and electroforming
Silverware and Gifts
  • The range of silverware and gifts that are on offer in jewellery shops
  • The popularity of certain types of silverware and giftware for different occasions and celebrations
  • How silver and silver-plated items are made
  • How to care of silver and silver-plated items
Watches and Clocks
  • The history of the personal timepiece, from fob watches to wristwatches
  • How mechanical and quartz watches work
  • Key characteristics and features of the different types of watches
  • The terminology associated with watches and clocks
  • The different types of clocks and how they work
Selling and Customer Care
  • How to use interpersonal skills and build rapport and trust with a customer
  • The six-stage process for making a successful sale
  • Different sales techniques including add-on, up-selling and top-down selling
  • The contribution of well-cared-for and displayed stock to the overall customer experience
  • The importance of following processes and procedures, for example when taking in repairs
  • How to deal with a customer complaint
  • The customer’s legal rights


Study Pack

  • Comprehensive online course notes
  • 'Bradbury's Book of Hallmarks'
  • 'Gemstones' by Cally Hall
  • 'Diamonds' by Marijan Dundek
  • A 10x jeweller's loupe


JET Progression

The JET Certificate (JET 1) is the first step in a student’s jewellery journey. It is part of a suite of 3 qualifications helping students take their skills and knowledge to the next level by studying the ATHE Level 3 JET Professional Jewellers’Certificate (JET 2) and JET Management Diploma.


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Be the next Clarity & Success Award winner

Each month, Clarity & Success gives a commendation for the best JET1 project, as identified by JET Tutors. The winning student receives a certificate, a write-up in The Jeweller magazine and are invited to attend the NAJ Education Awards.




Non-NAJ Member £615+VAT

NAJ Member £400+VAT

All bookings are subject to the NAJ's Terms and Conditions


Edu quote template just text JET 1a


Enrolments are processed monthly after the enrolment deadline (15th of each month) and may take up to 10 working days.



Full or part-funding may be available via Association Financial Support.


Edu quote template just text JET 1 2

Take your first step today

Start your jewellery education

Need more information?

Email the team

Call 07741554011