Identifying Laboratory Grown Diamonds

Undisclosed laboratory-grown diamonds are on the rise. As well as being unknowingly traded from business to business, many are being sold back into the market by consumers within second-hand goods. Valuers, pawnbrokers and auction houses are now seeing these products every day. Are you prepared to identify these stones?

Gain invaluable experience identifying laboratory-grown diamonds. This workshop will boost your confidence, understanding and practical skills. Identification focuses on observations and simple tests that are available to the average gem professional. Attendees receive an exclusive identification guidebook, which acts as a life-long resource.

In the workshop, you will learn how to use observation and instrumentation to help identify laboratory-grown diamonds.

Equipment includes...

  • Presidium ARi
  • Presidium SDSII
  • Gemetrix Jewellery Inspector
  • Gemetrix StrainView

Course topics

You will have the opportunity to handle a huge variety of laboratory-grown diamonds (45+ stones) of a variety of sizes and shapes, as well as mounted jewellery. This curated collection features a complete range of identification features in laboratory-grown diamonds.

  • Observation
  • Magnetism
  • UV reactions
  • Crossed polarised filters (CPF)
  • Screening equipment
  • Testing melee and discussions on advanced equipment.

Extra benefits

✓ Completion certificate

✓ CPD certificate (and CPD points/hours)

✓ 7-step guide to identification guidebook


Must be proficient at observing gems with a 10x loupe and microscope.

Identifying Lab Grown Diamond

About the instructor

Julia Griffith FGA DGA EG is a gemmologist and educator within the jewellery industry. Her gemmological school, The Gem Academy, specialises in educating the trade about laboratory-grown diamonds. Julia offers a range of online courses on this specialist topic as well as a practical identification workshop and tailored in-house training for jewellery companies.


If you are a valuer, a business owner or a jewellery professional, then this is a 'must attend' course. I can't recommend it highly enough. Thoroughly enjoyable day led by an engaging and knowledgeable tutor. Faultless.

Damon Barker

The course was excellent. We learnt a lot about how to differentiate synthetic diamonds from natural using simple tools that most people in the industry have access to.

Louisa Guiness 

If you work with diamonds, unless you've already done this workshop, you need to do this workshop. You don't have time to research and learn all this stuff yourself. Julia hands it to you on a plate. It's not cheap, but it's exceptional value for money, and in the long run will save you time, money and stress. It was simply excellent... I left having the confidence I wanted. Julia has spent years researching and gaining experience, to distill it down into one day, so I didn't have to.

Kerry Gregory



Non-Member £325+VAT

Member £275+VAT

Available dates and location

Date Location Address  
21st September 2022 Birmingham Federation House
10 Vyse Street
B18 6LT


For a booking form, contact Lyn Oliver.

Via email:

Phone:  0121 237 1145


Booking is subject to the following Terms and Conditions