GIA Diamond Essentials assignment 2 Questions and Correct Answers, With Complete Verified Solution. 2024

GIA Diamond Essentials assignment 2 Questions and Correct Answers, With Complete Verified Solution. 2024 Plot a color-keyed diagram of a gemstone's significant clarity characteristics; it can be modified for diamonds of any shape. when complete, a plot simplifies the task of finding a diamond's clarity characteristics. clarity is also known as ... purity, or quality (in Europe) Clarity characteristics form appear at different stages: during or after formation, can be also caused by cutting or setting process, or even occur when the diamond is being worned. loupe a small portable magnifying lens used by jewelers and watchmakers; from 4X to 30X; binocular microscope A tabletop magnifier with two eyepieces 10X 10X magnification is the standard clarity grading. Graining 晶纹 Sometimes as a crystal grows it develops irregularities in its atomic structure. When that happens, it forms a clarity characteristic called graining. Graining often looks like faint lines or streaks. Sometimes the lines are parallel, and sometimes they intersect. break/feather (cleavage and fracture) Cleavage is a break parallel to the weakest direction in the gem's structure. It sometimes has a step-like appearance. A fracture is a break in any other direction. In the trade, cleavages and fractures are generally called feathers. That's because they have a white, feathery appearance. inclusion types Clarity Grading Factors size; number; location (position); relief (the contrast between the inclusion and the diamond); nature (type of inclusion). one or two large inclusions usually set the grade; a reflector can lower the grade more than non-reflectors (a reflector in the pavilion can make it looks like many...); inclusions right under the table are more visible than other locations like under the bezel facets or near the girdle; Bruting/round up/girdling Forming the basic face-up outline of a round or rounded-shape diamond to prepare it for faceting; can cause bearding Bearding Small feathers that extend from the surface of the girdle into the stone [inclusion]