This one-day workshop offers an introduction to gemmology, exploring the science behind gemstones alongside the practical techniques used to examine and identify them. Through a combination of illustrated talks, gemstone samples and practical demonstrations, you’ll discover how gemstones form, what gives them their distinctive properties, and how gemmologists assess and value them.

You’ll also explore responsible sourcing, traceability and the environmental and social considerations surrounding the gemstone trade. With guidance from an industry specialist, you’ll gain a better understanding of the gemstone market and what to look for when buying gemstones.

What will I make?

There is no jewellery-making project in this workshop. Instead, you’ll gain practical experience examining gemstones and using specialist gemmological instruments, alongside a broader understanding of the world of gemstones.

You’ll also receive a gemstone book to take home, included in the workshop.

What will I learn?

- Introduction to gemmology and the world of gemstones

- How gemstones form and their physical and optical properties

- Responsible sourcing, traceability and environmental considerations

- Diamond and coloured gemstone mining and production

- Artisanal mining, explored through a case study in Sri Lanka

- Gemstone identification using specialist instruments and inclusions

- Practical gemstone testing and analysis

- Diamond and coloured gemstone grading and valuation

- Factors affecting gemstone prices and guidance on buying gemstones

What will happen during the workshop?

Supported by a series of illustrated presentations, Stuart will guide you through the key principles of gemmology, from gemstone formation and physical properties to the realities of mining, trading and sourcing.

You’ll explore a range of gemstones and learn how gemmologists examine their characteristics to help identify them. You’ll also be introduced to specialist instruments, including a polariscope, refractometer and dichroscope, to demonstrate how different properties can be observed and tested. Time permitting, there may also be opportunities to explore additional instruments, such as a spectroscope and UV light.

The workshop will also look at gemstone grading, valuation and pricing, alongside the importance of responsible sourcing and traceability. A case study of artisanal mining in Sri Lanka will offer a closer look at the people and processes behind the stones.

There will be plenty of opportunity to ask questions and develop your understanding of gemstones, whether you’re interested in jewellery design, buying gemstones for your work or simply learning more about the subject.

What skills do I need?

All levels: Workshops that are designed to be flexible and accommodate all skill levels.

If you are unsure if you have the correct level of experience, feel free to email  us for advice. 

What should I bring?

- Notebook and pen, if you’d like to take notes

- Reading glasses, if you need them

- Any questions or particular areas of gemmology you’re interested in exploring

What should I wear? 

Clothes: Casual and not too precious as they may get a bit dusty or damaged.  Avoid long, loose fitting sleeves and anything that might catch or get caught whilst you are working.

Shoes: Casual flat shoes and no open toed sandals in case you drop a tool or something hot on them!

Hair: Tie long hair back.

Who is my teacher?

Stuart Pool is a specialist in responsibly mined and fully traceable coloured gemstones, primarily sourced directly from mines in Sri Lanka and Tanzania.

He runs the gemstone trading companies Nineteen48 and Crown Gems. He is also a co-founder of Fair Luxury, a group focused on positive change in the jewellery industry, and a key member of the Moyo Gemstones project. Stuart is also a co-founder of the Get Stoned gem fair.

His work brings together gemstone expertise, international sourcing and a commitment to improving transparency and responsibility within the jewellery industry.

How do I get there? 

FORGE 59 Leather Lane, London EC1N 7TJ

See contact page for details on public transport and parking.

How do I book?

To book your workshop, simply add the number of spaces you'd like and click Add to Cart, then click on the basket icon in the top right corner to proceed to checkout.

Discount codes can be applied at checkout. 

PLEASE PROVIDE BOTH EMAIL & PHONE NUMBER

Please remember to provide your email address and phone number. We use this information only to confirm your booking, share details about the day, and contact you if any issues arise. Your contact details will not be used for marketing purposes unless you choose to opt in by ticking the box to receive updates from us.

Materials Disclaimer

Please note: Workshop material costs are based on metal prices at the time of organising each session. Due to continual fluctuations in precious metal markets, there may be a small increase in the price of materials. If this occurs, we will contact you prior to the workshop to confirm the difference, which can be settled on the day by card

Dietary Requirements 

At the end of the workshop, we’ll be providing a selection of vegetarian and fish sushi, along with prosecco and soft drinks. If you have any dietary requirements, please let us know in advance so we can make suitable arrangements.

Accessibility

Most of this workshop takes place at street level in our showroom, which is step-free and accessible. Some specialist equipment is located in our lower-level workshop, which can only be accessed via stairs, as the building does not have lift access.

If you have any access requirements, please contact us before booking so we can advise and discuss suitability and any adjustments we can make to accommodate you.