Reply To: How dark is TOO dark? › Forums › Cutting Material and Identification › How dark is TOO dark? › Reply To: How dark is TOO dark? April 7, 2016 at 2:51 pm #2520 Alan BalmerKeymaster @alanbalmer Here’s a good writeup on the white paper test, by John Bailey. http://facetingacademy.com/learn-facetinWhitePaper I’m attempting to contact a long-neglected friend who I remember as something of an expert on dark garnet. If I get information, I’ll post it here, with his permission.