Five questions on lesson 3 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: What does the D-to-Z scale measure?
Show the answer
b: It measures the tint, from colorless to light yellow or brown.
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Question 2: Why does GIA grade color against master stones in a standard environment?
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a: The same stone can look whiter or warmer in different light.
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Question 3: Which range does an H fall in?
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b: G to J is near colorless.
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Question 4: In the simulator, you put a D and an H under the Restaurant lighting, and you can't tell them apart. Why?
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b: The warmth of the light is stronger than the faint tint of the stone.
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Question 5: Is a Z a "bad" diamond?
Show our answer
No. It has a tint that you can see, and some people choose it for exactly that.
Did you have it?