Help with gem effect + OSL

[Flightless]

Simple problem really, but I\'ll give you a little description in case it helps.

All my space marines have green gem effect eyes. Despite it not being perfectly correct, these have white glints at the top, approaching the back.

Old image example:

Now I have a plasmagunner to do. I\'m making the plasmagun glow, and I\'m quite happy with how to OSL his armour, but the eyes confuse me. It isn\'t just a case of just adding a blue glint, but somehow getting the green gem-effect correct as well.

Some help would be much appreciated here, preferably with diagrams or examples.

 

[Shawn R. L.]

Sounds like an interesting problem. Post a wip of the mini with the glow.

 

[Flightless]

In which case I shall go and actually paint the mini, then the glow...
Usually I do eyes first, since i need to overpaint a little around the edges.
But certainly not impossible to change the order.
Um... May take until tomorrow.

Edit:
Scratch that. Damn, damn, and damn again. I have neglected to keep my blue paints in the same county as me for a couple of days...
Yawn. Well, push this post down, people. It won\'t be doing anything interesting \'til the weekend.