I made these several months ago and forgot all about them until now! Tourmalines and sterling. I am still messing around with my photo setup. The colours are brighter than in the photo. If I get a better photo the next time I'll update this.
I've pulled out all my stash and I've started playing. I haven't actually made anything, mind you, but I have some ideas and I will be soon. In the meantime I took a bunch of photos with my new camera. I was trying something new for lighting, and I don't think it worked fabulously. This was adjusted in Elements and while the colours are not particularly accurate I think the sparkle comes across.