Gemology Certification Practice Test
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📝 Gemology Practice Tests
Data Analysis & Decision Making
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📖 Gemology Study Guides
Gemology Certification: A Comprehensive Guide to Becoming an Expert in Gemstones
Gemology Certification Practice Test PDF (Free Printable 2026)
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Gemology Certification Practice Test
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Gemology Certification Jewelry Design & Precious Metals
Free · Instant Results
What does '18 karat' gold indicate about the metal's composition?
A
75% pure gold and 25% alloy metals
B
18% pure gold and 82% alloy metals
C
90% pure gold and 10% alloy metals
D
100% pure gold with 18 parts per thousand fineness
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