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Few Very Good Cuts
Very few polished diamonds ever reach this level. As a matter of fact, many polished diamonds are poorly cut. According to a GIA study of 67,000 diamond submitted for certification in 1998, less than 3% were very good cuts.* The reasons for these phenomena is twofold. First, committing to the excellent proportion cut requires a substantial loss of diamond yield from the rough material. This cuts into profits that can be easily realized in the commercial market place where the majority of consumer buyers are not sophisticated about the requirements necessary for an excellent proportioned diamond. Second, in order to cut the diamond with excellent proportion and finish requires extremely talented craftsmen. Unfortunately, there are not many highly skilled master cutters around.
Buying Guide for Cut
A poorly cut diamond, one cut too deeply or too shallow, will allow light to escape through the opposite side or through the bottom of the stone before it can reflect light back to the surface. In order to achieve great beauty, a diamond must have very fine external finish, optimal integration of proportions, and excellent internal optical symmetry. A well-cut David S. diamond, with the correct amount of facets and precise angles in good proportions, will allow the light to bounce freely inside-reflecting from one facet to another until it emerges from the top with all its promised brilliance.
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