I made a simple ring to try out some ideas with SubSurfaceScattering fakes in Bryce, see if I could pull any more realism out of it. Here's a comparison. All of the bloodpearls are lit internally by one central radial (each, so three radials total here). The first is just the three pearls and their lights, the second is the three and then three duplicated, only slightly (101%) larger glass spheres to add shinyness. In the third (bottom left) I multi-replicated each pearl 5 times, at 99% size decrease each time. So each pearl has 6 layers of world-space pearl texturing, and no glass layer, but still keeping the internal radial lights. In the last, I used PS to blend all three together equally. The last one doesn't look much different from the first or third. The question is, which one looks the most realistic, or the best? Or do they all look like garbage?!?