Q: We make silverware jewelry. We like to use gemstones in the center of our bracelets. After wearing for awhile, the wire breaks. I have tried different wire, etc. but have not solved the problem. We use the half hard 24-gauge sterling. Another jeweler suggested we try using virgin silver wire and then tumbling our pieces to work-harden. How do you tumble the finished product without damaging the stones? I cannot figure out a way to tumble the piece without the stone set. Is there a product to cover and protect the stones, etc while polishing? Also, I have tried a few different methods trying to get a gloss on polished gemstones when they are not premium grade. Is there a product that we can use on a Ruby to add luster which will harden and not damage the stone? The last one I tried I thought was the answer, however, after a few weeks the surface seem to soften. Thanks.