Five questions on lesson 10 of Diamond vs moissanite. 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: Which property protects a stone from chipping?
Show the answer
b: Hardness resists scratching; toughness resists breaking.
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Question 2: A stone shows strong fire and reads "diamond" on a thermal tester. What have you proved?
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b: Fire is a hint, and a thermal tester reads both as diamond.
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Question 3: Through a crown facet you see doubled pavilion edges. What's the honest conclusion?
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b: Doubling proves that the stone is doubly refractive. Add more clues before you say moissanite.
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Question 4: Put these in the routine's order, cheapest first: polariscope, look under spotlights, lab, loupe.
Show our answer
Look, loupe, polariscope, lab.
Did you have it? -
Question 5: Can this routine tell you whether a diamond is natural or laboratory-grown?
Show our answer
No: that needs a screening device or a lab.
Did you have it?