I would like to have a colored gemstone cluster ring made, similar to the ring pictured here, but with colors of a vibrant purple, magenta, orange sunset. What types of lab created gems are available in these colors? I have been using Precision Gem as a guide (drooling over his stones, my goodness), but I would love some opinions. Perhaps I can use mostly sapphires for this project, but I'm not sure about a vibrant orange or purple. What do you think?