here's an individual review I found based on the lens in sunglasses. Not mine, I don't have any.
Really great lens. Looks more like deep gold/brown/amber than green though. Only when the light hits it just right do you get a greenish reflection. It's a bit like emerald slate in that regard but the base color is far more interesting and has increased contrast to boost. It's very pleasant to look through and providing there isn't to much light you can wear it all day without any fatigue.