Does anyone know how fluorescence is graded in the AGS lab? I know it has to be under UV light, but is it done in a hood of some type? Under normal room lighting? In a darkened room?
The reason I ask, is I have a diamond AGS certified as "Negligible" fluorescence. When I look at it under the UV light on my loupe, in a darkened room, it practically glows blue. I'm not sure how to reconcile the strong blue glow I see with the term "Negligible". Any education from you experts would be appreciated.
The reason I ask, is I have a diamond AGS certified as "Negligible" fluorescence. When I look at it under the UV light on my loupe, in a darkened room, it practically glows blue. I'm not sure how to reconcile the strong blue glow I see with the term "Negligible". Any education from you experts would be appreciated.