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Very interesting and enriching the article published on the GIA website link  https://www.gia.edu/blue-diamonds-have-surprise-origin-and-link-to-ocean Scientists have concluded by examining the inclusions, that is, small pieces of minerals trapped in the diamond during its crystallization, that the blue “type IIb” diamond was…

In a cut diamond appraisal, it is important to consider the following independent variables: color grade, clarity grade, cut grade, weight, intensity and color of fluorescence, and not least the market in which the stoned diamond will be evaluated. This…

To evaluate a rough diamond it is necessary to calculate the result that will be obtained after being cut. This estimated calculation requires knowledge and experience in this evaluation so that the rough diamond cutting is as precise as possible….