I made these quite quickly so hope that they're ok. Use surface diffuse and emission settings to change the look and turn slightly towards light if side-lit. I think I might try higher resolution cloud renders from blender next time.
Related on DAZ3D - epic! - Stonemason's Iray Clouds
Here's a free prop for Daz Studio - Little Box ;-)
Use for jewelry, makeup, secret stash etc
Download this freebie for daz studio - click here
Related on Daz3d - Gems, Metals, Crystals and Pearls Gemologica
Renderosity - SV's Iray Gemstones Creator Kit