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Clarity The Diamond Course Individual Member Edition D i a m o n d C o u n c i l o f A m e r i c a © 2 0 1 1 Learning Evaluation Reminder I f you have not yet completed Learning Evaluation 1, please do so before continuing further with your coursework. The DCA Diamond Course for Individual Members includes three Learning Evaluations. These are section tests and they come after Lessons 2, 8, and 14. There are also three Satisfaction Evaluations, which give you opportunities to rate and comment on the objectives, content, presentation, and service for the course. You can find more information about Learning and Satisfaction Evaluations in the "How This Course Works" section of Lesson 1. If you have other questions or need help, please contact us. You can use this website – just click on Help. You can also email studenthelp@diamondcouncil.org or phone 615-385-5301 / toll free 877-283-5669. Clarity In This Lesson: • A Key C • Defining Clarity • Clarity Characteristics • Evaluating Clarity • Clarity Grades • Clarity, Value, and Beauty • Choosing the Right Clarity A KEY C Clarity is a key element affecting a diamond’s rarity, so it has a big impact on its cost. However, clarity may not affect a dia- mond’s beauty. You may have already learned something about clarity and clarity grades. But even if you’ve never purchased a diamond, you’ll find clarity is easy to understand. The most important thing is understanding clarity so that you can make a purchase decision with confidence. It’s necessary to keep the relationship between clarity and beauty in perspective. Photo courtesy JB Star. The Diamond Course 3 D i a m o n d C o u n c i l o f A m e r i c a ©  Clarity Individual Member Edition Lesson Objectives When you have successfully completed this lesson you will be able to: • Define clarity in easy-to-understand terms. • Discuss the instruments and methods used for grading clarity. • Recognize clarity's effect on a diamond's value and beauty. • Use diamond clarity grades to make a confident purchase decision. DEFINING CLARITY In Lesson 1 you learned that you can define clarity as a diamond’s freedom from blemishes and inclusions. Blemishes are surface irregularities such as scratches. On the other hand, inclusions are internal – for example, tiny crystals of other minerals. Both types of features are called clarity characteristics. Because each diamond has a unique combination of clarity characteristics, they are sometimes called identifying characteristics. Clarity Clarity characteristics come from events in the life of the diamond. Many are byproducts of its growth within characteristics the Earth. Some can be caused during its journey to the result from surface. The stresses of mining, processing, and cutting may create others. (You’ll learn more about these topics various events in in the lessons ahead.) In many cases, clarity character- istics don’t affect a diamond’s beauty. So it’s inaccurate the “life” to call clarity characteristics “imperfections” or “flaws.” of a diamond. They are more like the marks you often see in fine leather or other natural products. Clarity characteristics have benefits, too. They help to separate diamonds from lab created diamonds and imita- tions. Like a person’s features, they also make a diamond unique and identifiable. The Diamond Course 3  D i a m o n d C o u n c i l o f

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