Latest Episodes

29: Organics: Coral. Don't bleach it! Or Maybe you should.

This episode explores the fascinating world of coral, its history, types, and significance in gemmology. Hosted by Simon and Lucinda, it covers everything from the biological origins of coral to its cultural importance and modern regulations.

March 23, 2026 • Season 1 • Episode 29 • 36:36

28. Colour: Pleochroism and Colour Filter Gem testing

In this episode, Lucinda and Simon explore the fascinating world of gemmology instruments, focusing on colour filters like the Chelsea colour filter and pleochroism testing methods. Learn how these tools aid in gemstone identification and enhan...

March 16, 2026 • Season 1 • Episode 28 • 32:08

27. Jadeite: A Cultural Icon

This episode explores the fascinating world of jadeite, covering its geology, colours, treatments, cultural significance, and the latest gemological insights. Hosted by gemmologists Lucinda and Simon, it offers a deep dive into one of the most ...

March 09, 2026 • Season 1 • Episode 27 • 55:39

26. Interview: Andrew Geoghegan - Jewellery Design, Branding and Keeping it Real

Join us as we explore the journey of jewellery designer Andrew Geoghegan, from childhood fascination with treasure to creating innovative collections inspired by history and nature. Discover insights on craftsmanship, branding, and staying auth...

March 02, 2026 • Season 1 • Episode 26 • 52:43

25. Interview: Wim Vertriest - GIA Field Gemmology, Gem Identification and Mozambique Rubies

 Join us as Wim Vertriest, head of field gemmology at GIA, shares his journey from geology to gemmology, insights into Mozambique rubies, and the fascinating science behind gemstone origin determination. Discover how field gemmology connec...

February 23, 2026 • Season 1 • Episode 25 • 1:02:52

Fan Mail

Hi both, thanks ever so much for the great work you guys are doing on sharing your passion - I've started the foundation course with Gem- A in Birmingham Uk and have been listening to your podcasts since inception - it truly is helping me understanding conceptual subjects related to my study which still slightly blurred in my mind so please do keep up the good work and if possible do share us more insights on your learning processes and how did you manage to progress during the course etc which part (s) did you find more difficult and how you've overcome challenging times. With best wishes Mohamed

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