[Photo by Dong Gefei / for chinadaily.com.cn] The world's first diamond made from peony-derived carbon elements made its debut on Wednesday in Luoyang, Henan province. The 3-carat diamond was ...

So what's the fairest element of them all? See what the experts had to say. Dr. Donna Nelson — Carbon Credentials: Dr. Donna Nelson is a chemistry professor at the University of Oklahoma.