Five questions on lesson 2 of The four Cs. The questions and the answers to pick from come in a new order every time you start.
Pick an answer, and the question marks itself. For a question that you answer in your own words, think of your answer first. Then show our answer and say whether you had it. Nothing is saved or sent.
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Question 1: A diamond weighs 0.40 ct. How many points is that?
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b: The carat has 100 points.
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Question 2: You double the carat weight of a diamond with the same cut. Its diameter grows by about:
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a: The cube root of 2 is 1.26.
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Question 3: In the simulator you step from 1 to 3 ct, and the stone stays the same size on screen. What changed?
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b: The stone always fills the view; the scale bar and the report show the size.
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Question 4: Why can two 1.00 ct diamonds face up at different sizes?
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b: A deeper cut or a less dense material changes how much stone each carat buys.
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Question 5: A friend can choose a 0.99 ct or a 1.00 ct stone of the same quality. What do you tell them?
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The difference is 0.02 mm across, and nobody can see it. The 0.99 is usually the better buy.
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- The four Cs: all the lessons