Diamond & Diamond Grading Final Exam Questions and Correct Answers. Over 450 Questions and Correct Answers. Complete Solution. 2024

Diamond & Diamond Grading Final Exam Questions and Correct Answers. Over 450 Questions and Correct Answers. Complete Solution. 2024 Abrasion (Abr) A series of minute nicks along the facet junctions of a fashioned diamond; gives the edges a white or fuzzy appearance. (Assignment 10) Adamantine luster The highest degree of luster possible in a transparent material. (Assignment 8) Aggregate A solid mass of individual, randomly oriented crystals, intergrown or held together by a natural binding agent. (Assignment 7) Alluvial deposit A deposit where gems are eroded from their source rock, then transported away from the source and further concentrated. (Assignment 5) Angle of incidence The angle at which a ray of light strikes a surface, measured from the normal. (Assignment 8) Angle of reflection The angle between the normal and a reflected ray of light. (Assignment 8) Annealing Using heat to stabilize irradiated color in gemstones. (Assignment 12) Appraisal