Learn from home: 1 to 1 Q&A or demo on any aspect of semi precious gem cutting

Amethyst heart cabochon


Hello, I'm James Langdon and I teach gem cutting: I've been a professional gem cutter for the past twelve years, selling my gems (cabochon, faceted and concave cut) to jewellers in Brighton in Sussex, to gem dealers and jewellers in Hatton Garden as well as internationally through instagram.
During these challenging times with the social emphasis on keeping distant from each other I am offering one on one question and answer or demonstration sessions by video messaging -using the zoom app- on all aspects of the arts of lapidary.

Here's some examples of questions you might want to ask...

How do you cut a cabochon?
How do you facet a gem?
What equipment do I need?
Where do I buy equipment and tools?
Where do I buy rough stones from?
Australian opal versus Ethiopian opal?
What do I look for when buying gem rough?
Cabochon rough vs facet rough?
Different polishes: which one for which stone?
The critical angle: what is it and how does it apply to angle choice when cutting the pavilion and crown of a faceted gem?
How do you polish a cabochon?
How do you obtain a mirror finish on a facet?
How are concave surfaces cut and polished?
Dopping: what is it, and how do you do it?
Unglueing: when you've finished...

These or any other question on gem cutting will be answered to the best of my ability via the zoom video messaging app. The session will last about one hour.
I'm not a clock watcher, if it runs over a bit it's not going to bother me.

If you would also like a certain aspect of gem cutting demonstrated by me please get in contact and we'll arrange something mutually convenient that lasts about 60 minutes.

I look forward to sharing my knowledge with you on the subject of lapidary: a process traditionally shrouded in mystery.

Thanks for looking! Stay safe. :)

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?

Advice on a tricky and exacting subject!

What you will need

Nothing is physically needed to understand the process of gem cutting: however if you have purchased lapidary equipment and seek guidance this is for you.


James Langdon at Treasureworks

This course is taught online

Suitable for

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


1 hour (3:00pm to 4:00pm)

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