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Showing posts with label treatments. Show all posts
Showing posts with label treatments. Show all posts

Tuesday, April 10, 2012

Gem Treatment Update

Stuart Robertson was spot on. The biggest problem today is correctly identifying treated from non-treated gemstones and it is becoming nearly impossible with the best gem testing equipment available, period. Sad really.

Useful links:
http://www.gemguide.com
http://www.agta.org
http://gemstone.org
http://www.palagems.com

Friday, November 04, 2011

Tuesday, August 09, 2011