top of page

Tue, 25 Apr



Identifying laboratory-grown diamonds - CMJ exclusive

Exclusively for CMJ retail and supplier members. Join this one-day workshop and learn how to confidently identify laboratory-grown diamonds.

Registration is Closed
See other events
Identifying laboratory-grown diamonds - CMJ exclusive
Identifying laboratory-grown diamonds - CMJ exclusive

Time & Location

25 Apr 2023, 09:30 – 16:30 BST

Donnington, Old Oxford Rd, Donnington, Newbury RG14 3AG, UK

About the Workshop

Learn how to identify laboratory-grown diamonds with my signature practical workshop. After this day, you will never make a buying mistake again. Julia Griffith FGA DGA EG will lead you through her 7-step guide to identification. With this logical, step-by-step process you will never misidentify a stone. This day contains a series of lectures and hands-on sessions. You gain access to over 50 laboratory-grown diamonds that exhibit a full range of possible identification features. CPD accredited.

Tuesday, 25th of April 2023

9:30am - 4:30pm

£329.16 + VAT

Exclusively for members of the Company of Master Jewellers

  • Learn everything you need to know so you can test and identify laboratory-grown diamonds.
  • 50+ laboratory-grown diamonds showing vast range of features.
  • Excellent peer-tutor interaction with a maximum of 10 other participants.
  • Standard gemmological equipment available on loan for the day.
  • Fully catered -  lunch and refreshments included.

Topics will include: Observation, magnetism, UV reactions, crossed polarised filters (CPF), screening equipment, testing melee and discussions on advanced equipment. Equipment includes; Presidium SDS II, Gemetrix Jewellery Inspector, and Gemetrix StrainView. 

Target audience:

✓ Diamond buyers

✓ Jewellery valuers

✓ Pawnbrokers

✓ Gemmologists and gemmology students

✓ Retailers

✓ EVERYONE buying diamond jewellery from the public domain.

Pre-requisite: Must be proficient at observing gems with a 10x loupe.

Workshop leader: Julia Griffith FGA DGA EG

Extra benefits:

✓ CPD certificate 

✓ Completion certificate from The Gem Academy

✓ 7-step guide to identification guidebook by Julia Griffith


  • Ticket (reservation only)

    This ticket reserves your place at the workshop hosted by the CMJ on Tuesday, 25th April. Payment of £329.16+VAT per ticket will be taken after reservation by the CMJ.

    Sold Out

This event is sold out

Share This Event

bottom of page