1 Day Diamond Identification: 30th April 2026 - Glasgow

Wouldn't it be great to be able to tell whether that colourless stone your customer hands you is a diamond just by looking at it with a loupe?

That is what you'll achieve in this one day class. Thursday 30th April 2026, 09:30 to 16:30 in the heart of Glasgow.

This class is designed with working jewellers, goldsmiths, designers, auctioneers and pawnbrokers in mind.

A very hands-on class, you'll be led through how to look at gemstones to get the information you need to make a decision. What features to look for, and how to use them to separate Diamond from common simulants. We focus on CZ and Moissanite in the class because these are the most common on the market, and if you can tell the difference between them, you will be able to separate any other diamond simulant on the market using the same process and features.

Key Objectives:

• Separate Diamond from CZ, moissanite and all common imitations using just a loupe and your eyes.
• Be able to explain the impact of colour and clarity to your customer, in terms of look and price.

Previous knowledge needed:

There is no previous knowledge needed for this class. You just need to be able to speak English fluently, and see. It is beneficial if you already have some experience handling, and observing diamonds, their imitations and other gemstones, but not necessary. We will give you all the training and skills you need to do this from a basic level.

What you can learn next:

Once you are confident in handling, observing and separating diamonds from imitations (things that look like diamond but are not the same chemistry or structure eg CZ, Moissanite, and other imitations) you can go on to study further.

• Learn how to assess diamonds for commercial purposes. Appraise the 4 c's of colour, clarity, cut and carat, to give yourself and customers more confidence, and help you buy and sell diamonds better.
• Use multi stage techniques and some advanced equipment, to screen and identify diamond from synthetic diamond.

What you get:

• 6 hours in person tuition, and hands on exercises
• Use of all the equipment you might need
• Hundreds of stones to work with
• Refreshments provided throughout the day
• Lunch
• A fabulous one day experience

Who is your teacher?

Kerry Gregory FGA DGA EG GG,  a one woman whirlwind. Passionate, funny and motivating, and her workshops are always engaging, practical and entertaining. 

Kerry has delivered presentations and workshops, to critical acclaim, to many organisations and associations including; The National Association of Jewellers, The Jewellery Valuers Association, The Scottish Gemmological Association and Gemworld International. As well as hundreds of individuals. She has taught hundeds of individuals like you skills that they use everyday in their business successfully.

She holds qualifications in Gemmology and Diamonds from both Gem-A and GIA, as well as the prestigious Diploma in Gemmology which needs “Academic excellence” from FEEG. She is a Senior Accredited Gemmologist with AGA, and is widely considered one of the premier teachers in practical gemmology in the Western World, due to her engaging and effective teaching style, and her vast working knowledge of gemmology.

A past long term tutor and head of ATC for Gem-A, she served on the board of Gem-A, and ran one of the UK Branches. Currently on the Board of Trustees for the Silversmiths and Jewellers Charity (UK), and a key contributor to the National Association of Jewellers Professional Trade Standards Committee, particularly focussing on Gemstones, Diamonds and Hallmarking practices. She is also a Freeman of the Worshipful Company of Goldsmiths and the City of London, and currently sits on the British Hallmarking Council.

Kerry started Gemmology Rocks, after a career of Retail Jewellery, Valuing, Pawnbroking and plenty of hands-on Gemmology. To deliver hands-on practical education to businesses, that gets to the root of frustrations, providing development, support, solutions and education to tackle the stuff that makes a difference every day in business, and makes everyone more money! To deliver education of the highest standard, she has completed a Teaching Qualification specialising in teaching adults. 

Where you'll be:

This class is being held at The Studio Glasgow. A 3 minute walk from Glasgow Central station.

67 Hope St, Glasgow G2 6AE

Get to The Studio on Google Maps

There is lots of parking in Glasgow, but it can be pricy, and driving in the city centre can be a pain, we would recommend public transport as a better option, but let us know if you need help finding a car park.