What is ex ex ex in diamond?
What is ex ex ex in diamond? Diamonds that have a EX EX EX grade are called “Triple Ex”. This means that the diamond has not only been graded as “Excellent” Cut, but also has been graded as being “Excellent” in Polish and Symmetry too. This is the highest classification possible for these areas in the GIA grading system. Which Diamond Cut is best? ROUND BRILLIANT DIAMOND 1. ROUND BRILLIANT DIAMOND. By far the most popular cut is the Round Brilliant, with it's fifty-seven perfectly aligned facets it's brilliance really does out-shine the others. Total internal reflection is the key...