Rubies: Connecting Sources, Treatment and Science | GIA Knowledge Sessions Webinar Series

GIA Knowledge Sessions Webinar - recorded live on May 7, 2020.
Known as “the king of precious stones,” untreated rubies are some of the most valuable colored gems in the world. What ruby deposits have supplied royalty for centuries and what new deposits are taking the gem and jewelry market by storm? How can treatments enhance these stones? Tune in as Wim Vertriest, supervisor of field gemology at GIA Bangkok, explores the mining, treatment, lore and politics of these legendary gems.
Read more of Wim Vertriest's research:
www.gia.edu/gems-gemology/spr...
www.gia.edu/gems-gemology/win...
www.gia.edu/gems-gemology/sum...

[@HappyKaci]

Thank you very much to Wim, geologists, GIA organization and all the contributors to this video! It’s an excellent knowledge sessions! Look forward to many more of these videos. I learned a lot and would continue to share what I learn. Thanks again!

[@yamikanijimusolegggia7210]

Refreshing

[@LordLuxul]

Very informative presentation. It is great to hear both a bit of the history and science surrounding rubies from various locations.

[@zaryhosseini4463]

Thank You

[@baldergems627]

Great video, good job Wim.

[@stefanusweyers3767]

Thank you , an excellent overview

[@kolkatagems]

Great experience 👍👍👍👍

[@dunhillwatchlighter]

Thanks for this informative Video. Appreciate it.

[@geniehua8404]

Thank you!

[@coldshot5555]

Hi Wim, I'm Kim...Can Borax during the heating process, cause gas bubbles in the corundum fractures it's healing?

[@charlesmoe4854]

Do next in headed on treat ment from Indiana . Have a good day.

[@charlesmoe4854]

I m cutting on a grinder using a 220 grit wheel .I am cutting a 50 carret stone . It cut in a cab .I used a 400 , grit to a 600 grit . To 1200 grit what would you recommend. To use next.

[@coldshot5555]

1200 to 3000 to 30,000 to 50,000 and if your real good 100,000 diamond pwd.

[@josereymelgo3085]

What is PWD sir?

[@tashitobgyel9596]

i have several rough diamond , i shall send some sample in picture to idenrify. if you allow me.

[@gemturk4673]

🙏 🙏 🙏

[@dominickrusso99]

If you don't know what a rough pigeon blood Ruby is then you guys don't know much of the real thing.