Do the 4Cs still make the cut
The “5Cs and 2Ts” isn’t as catchy as the usual formula, but it might be a better pricing method, according to the author of a diamond-trade guide that claims the 4Cs are no longer adequate. “One of the biggest misconceptions is that there are only four diamond price factors — color, clarity, cut and carat weight,” says Renée Newman, a graduate gemologist who last year published the third ...