While the 4Cs of diamond grading were proven concepts, and several other grading programs were being in use, the necessity arose for the common grading procedure. Therefore, GIA's 4Cs grading method is the most generally adopted and approved common for diamond grading. Is it really worth purchasing a certified diamond https://hectorysojf.mpeblog.com/60771363/the-best-side-of-diamond-certificate-template