Playing the Blues: An Overview of Sapphire Treatment | GIA Knowledge Sessions Webinar Series
GIA Knowledge Sessions Webinar - recorded live on September 16, 2021.
For almost as long as there have been gems, there have been gem treatments. The earliest description of treating blue sapphires dates back to roughly a thousand years ago. Since then, sapphire treatment has evolved, and numerous new treatments have emerged that can radically alter the appearance of a sapphire. From low temperature heat treatment to beryllium diffusion and more, tune in as Wim Vertriest, Manager of Field Gemology at GIA Bangkok, explores the history, science and technique of treating blue sapphires and how to detect these treatments.
Read more of Wim Vertriest's research:
www.gia.edu/gems-gemology/spr...
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www.gia.edu/gems-gemology/sum...
Пікірлер: 13
Very clear explanations of the treatments, and the chemistry behind them. Of course, fantastic photos to illustrate "before" and "after".
Excellent video! Thank you. Do you have a video for the treatment of fancy colored sapphires?
Thanks, great webinar!
I like your videos. Love this one. Many kind thanks
The webinar was superb
Very knowledgeable, thanks for in depth sharing.
Very good Information thanks for sharing
You are a god
Does any one has a idea about heating and cooling rates in reducing environment..?
It’s so informative! Thank you 😊
Very useful content ! If you like to do a separate study on Sri Lankan “ Geuda Sapphire “ , I would love to facilitate you with the required material . Please let me know your views . Anthony Fernando
Hi I am from srilanka. I would like to join the gemology distance learning course of the GIA. Can I contact someone who there at GIA to confirm it.....👍👍👍👌
@GemologicalInstituteofAmerica
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