Attached Link: Taking photo's of gems

you need LED light sources to give the sparkle btw - i remember looking into this for my work at iSold It over the summer.  You could probably manufacture one of these if they are above your budget - just get a ring of wood, a battery pack, some wires and some of those LEDs and there you have it...

"In every colour, there's the light.
In every stone sleeps a crystal.
Remember the Shaman, when he used to say:
Man is the dream of the Dolphin"

Rich Meadows Photography