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Diamond Grading
"American Cut - The First 100 Years," by Al Gilbertson, G.G. A moment of decision is coming A review of the “foundation” of GIA’s new cut grade system A screening tool for all diamond grading AGS' new cut-grading of princesses: a first experience Black Inclusions in Diamonds Cutting Ovals Cutting the AGS-0-Princess : the experience with the lab Diamond Grading Labs – A Plan for Peer Review Fractioning of Color by a Gem GIA Excellent Cut Grade: Case Study Grading the Princess Cut Hearts & Arrows Diamonds - It's not all about light return. Letter to the Editor of the Australian Gemmologist Making the case for Imagem diamond grading Numbers and perception, the case of square diamond-cuts Scallops The Effects of Indexed Upper Half Facets The intricacies and risks of diamond-cutting The matter of depth in a princess-cut The role of contrast in diamond appearance Upper Halves - Counter Point Visible Effects of Painting & Digging on Superideal Diamonds What do you mean diamonds can chip?! Why a Two-Dimensional Cut Grading System is Passé

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