Gem cutting, tuition for two students in cabochon cutting and an introduction to faceting

A peridot just about to be cabochoned


Hello! My name is James Langdon and I will be giving the tuition. I have been a self employed gemcutter since 2008 and have sold gems to gem dealers and jewellers in Hatton Garden as well as internationally through instagram. I cut cabochons, faceted gems and concave cut gems too. This short course is for two students and covers the knowledge needed to cut cabochons with an introduction to faceting as a cabochon needs a single, mirror finish facet on the back to complete it.

When you arrive we'll select the rough stone you will cut. A quartz (amethyst or citrine), or a garnet will be provided but you will be given the opportunity to purchase a different type of stone to cut (I have a few types to choose from) if you so desire.
Your rough will then be glued onto a cabochon dop. While the glue cures, there will be an approximately 30 minute demonstration of how to cut the crown (top) of a cabochon to a perfectly smooth mirror finish. Once my stone's crown is finished, using a transfer jig a faceting dop is glued to the crown. student at a time, you cut your first cabochon crown under my supervision. Once we're both happy with the curves and mirror finish your stone gets a faceting dop glued onto it.
While the glue on your stone cures there is a 30 minute demonstration on how to facet the single mirror finish facet on the back of the stone using an Imahashi faceting machine. student at a time, you facet the single facet under my supervision. That's very easy to type, but a bit tricky to do!

After your gem is finished it needs to be soaked in a solution to dissolve the glue. This can take up to 24 hours so your gem will be ready to collect the next day, or, if that's not convenient it can be posted to you by Royal Mail special delivery at no extra charge.

Please be aware that the stairs to the toilet are very steep and not suitable for anyone with any difficulty walking.
This course is suitable for someone with no experience in gemcutting. I can teach most afternoons and evenings, please enquire for availability.

My workshop is close to Lewes Road in Brighton and there are several bus routes available which use that road. The closest bus stop is St. Paul's street which is a 3 minute walk away.

The tuition runs for approximately five and a half hours but I'm quite happy to extend the time available until the cabochon has been properly finished.

Cancellation and a full refund can be obtained up to 2 weeks before the course starts. Start dates may be amended on request.

What's included in the price?

One piece of facet grade amethyst or citrine, or garnet.
Water, tea or coffee, biscuits.
Postage of your cabochon to you by Royal Mail special delivery (if needed).


James Langdon at Treasureworks


14a Edinburgh Road
East Sussex

Suitable for

  • Adults
  • Advanced/pro level
  • Intermediate level
  • Public transport
  • Seniors
  • Suitable for beginners
  • Teenagers


5½ hours (3:00pm to 8:30pm)

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Ruth Bannister - - #35174

I bought this course as a birthday gift for my Dad. We drove down to Brighton for the day and we learned loads from James. He certainly knows his craft, and he walked us through the way he cuts stones into cabochons. We then learned how to create a facet on the reverse of the stone - and brought it all up to a high shine. Very interesting and informative. Be prepared to absorb a lot.
James also has stones for sale - so I made the most and I brought a stash home with me. :)

Response from Treasureworks:

Thank you Roo, it was great meeting you and your Dad! Thank you for a lovely review too.
James :)

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