The Gem Show

Julia Griffith
  • 5.0 (2)
  • EARTH SCIENCES

Made for gemmologists. Sharing stories that help us understand the world of gems and gemmology.

Episodes

  1. 004 - Lab-grown diamonds that test as synthetic moissanite

    11/16/2020

    004 - Lab-grown diamonds that test as synthetic moissanite

    Some near-colourless HPHT lab-grown diamonds have electrical conductivity and so will test as the diamond imitation "synthetic moissanite" instead of diamond using a number of diamond testers. At this period of time... this is not common knowledge so come learn all about it on this podcast episode.

    11 min
  2. 003 - Diffusion confusion

    11/10/2020

    003 - Diffusion confusion

    There is lots to learn about diffusion treatments in corundum and one thing that does not help matters is the terminology that is used; surface diffusion, lattice diffusion, bulk diffusion? In this week episode Julia discusses these terms and why she uses none of them.

    15 min
  3. 002 - Mining ancient riverbed deposits in The Gemfields, Australia

    11/06/2020

    002 - Mining ancient riverbed deposits in The Gemfields, Australia

    In this episode, we focus on the The Sapphire Gemfields of Queensland, Australia, and also discuss the extraordinary depths of ancient riverbeds deposits as well as the processes of mining these sapphires.

    14 min
  4. 001 - HPHT diamond synthesis and the importance of pyrophyllite

    11/04/2020

    001 - HPHT diamond synthesis and the importance of pyrophyllite

    Have you ever wondered how so much pressure can be applied to the reaction cell in HPHT diamond synthesis? I did... In this first ever episode of The Gem Show, we explore the importance of pyrophyllite in the HPHT diamond synthesis process... and how this throws into question the marketing of some lab-grown diamond retailers.

    11 min

  5. TRAILER

    The Gem Show (Trailer)

    The Gem Show

    23 sec

Trailer

Ratings & Reviews

5
out of 5
2 Ratings

About

Made for gemmologists. Sharing stories that help us understand the world of gems and gemmology.

Information

  • Creator
    Julia Griffith
  • Years Active
    2K
  • Episodes
    5
  • Rating
    Clean
  • Copyright
    © Julia Griffith
  • Show Website
    The Gem Show