GIA has the strictest grading standards plus a longstanding standing for precision, rendering it the benchmark for diamond certification. The AGS DQR (remaining) is obtainable to manufacturers who prefer a lighter second proportions-based Reduce grade which mimics the GIA technique. It had been designed in response to makers who couldn't https://wordpress17035.blogthisbiz.com/41624973/the-best-side-of-diamond-certificate-online