I only found very outdated thread on UGL labs (and it was in rocky talk). had anyone heard of this lab? an ebay seller has certs from this lab. what do you think? thanks!!
http://uglinc.com
In looking through their website, it looks more like a lab that does appraisals. I do not see any explanation on their ratings for coloured stones.
I see nothing on their website that indicates the equipment they use. Moreover, the example they have of a colored stone report does not have any mention of treatment, which makes me think they don't have the equipment to properly test, especially for something as difficult to test as corundum (just in case that's the stone type in question). Good luck.
I only found very outdated thread on UGL labs (and it was in rocky talk). had anyone heard of this lab? an ebay seller has certs from this lab. what do you think? thanks!!