GRS GemResearch Swisslab AG
  • About
    • Company Profile
    • Dr. A. Peretti
  • News
  • GRS Reports
    • Gemstone Reports
    • Enhancement Disclosure
    • Shipping Information
    • Prices
  • Research
    • Analytical Methods
    • Inclusion Gallery
  • Publications
    • Article Library
    • Video Library
    • Contributions to Gemology
    • Auction References
    • Shop
  • Shop
  • Report Verification
  • Contact
  • 0
    Cart
08/08/2003

Namya rubies

Share
  • Email
  • Twitter
  • Facebook
  • Google +
  • Pinterest
  • Tumblr
  • Linkedin
  • Vkontakte

Authors: Adolf Peretti
Published in: Contributions to Gemmology No. 2

Download Publication

09/09/2015
Ruby
Latest GRS Alerts
New types of synthetic periclase identified by C2S inclusions – dicalcium silicate cement hardener 19/12/2018
Warning: Synthetic Padparadscha sold as Natural in the trade. 11/09/2018
GRS Alert: Unusual phosphorescent pebbles identified as synthetic aggregates 24/04/2016
Recent Posts
Retake of GRS presentation on HPHT-treated sapphires from 2019 GILC meeting in Tucson, AZ 05/02/2019
Q&A on PHT-treated sapphires published in Southern Jewelry News 22/01/2019
New types of synthetic periclase identified by C2S inclusions – dicalcium silicate cement hardener 19/12/2018
GRS Newsletter

GRS Gemresearch Swisslab

2 weeks ago

GRS Gemresearch Swisslab

One of the topics discussed at this year’s GILC meeting in Tucson, AZ (held on 4th February 2019) was "Pressure /Temperature Corundum Treatment". GRS had been invited in order to present our findings on the topic. Mr. Edward Cleveland, research staff at GRS in Bangkok represented GRS at the event and gave a presentation called "HPHT (PHT) Treated Sapphires - An Update on Disclosure & Durability".

Since the GILC meeting is by invitation only and all attendees have to sign a non-disclosure agreement, we have decided to record a retake of our own presentation so all trade members and the public can hear our point of view on the subject. The retake is presented by GRS CEO Dr. A. Peretti.Keynote talk that was given at 2019 GILC meeting in Tucson by Eddie Cleveland. This is a retake done by Dr. A. Peretti.
... See MoreSee Less

Video

View on GRS Facebook Page
·Share

View on GRS Facebook Page
  • Contact Us
  • GRS on Twitter
  • GRS On Facebook
  • GRS On Google+
  • GRS On Pinterest
  • GRS On Instagram
  • GRS On YouTube
© 2017 GRS GemResearch Swisslab AG | www.gemresearch.ch
  • Disclaimer
  • Company Profile
  • News
  • Gemstone Reports
  • Contact
  • Privacy Policy
  • GRS Report Verification
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you agree with it.OkPrivacy policy