I saw them at a Gem Faire this Fall and am in love! They're actually quartz mined originally in the Herkimer County, NY, but their special structure makes them sparkle like the real diamonds under the sunlight!
They are known to have the magical power of reduce stress, balance and cleanse energy between the mind and body. Better than alcohol :) Just kidding! I enjoy a glass of wine from time to time as well. I'm in the process of making some simple and modern stud earrings with them. Hopefully will have the listing up sometime next week.