Page 1 of 126
Certified Bench Jeweler (CBJ) Exam COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS YEAR-JUST
RELEASED
SUMMARIZED EXAM COVERAGE
The CBJ exam tests skills in jewelry materials, bench tools, repair techniques, stone setting, fabrication,
polishing, engraving, quality control, and safety. Candidates must demonstrate the ability to safely
repair and fabricate jewelry using professional bench techniques, identify and work with precious metals
and gemstones, execute precise stone setting, and produce high-quality finished jewelry while
maintaining safety standards and craftsmanship accuracy.
1.
A jeweler is sizing up a 14K gold ring and notices stress near the solder joint. What is the safest action?
A. Force stretch without heating
B. Anneal the ring before resizing
C. Polish before resizing
D. Use cold hammering only
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Answer: B
Rationale: Annealing softens the metal, reducing stress and preventing cracking during resizing.
2.
During prong retipping, a diamond shows slight movement after soldering. What is the most likely issue?
A. Excess polishing
B. Weak or insufficient prong structure
C. Overheating stone
D. Wrong metal type used
Answer: B
Rationale: Loose stone movement usually indicates inadequate prong rebuilding or support.
3.
A jeweler overheats a sapphire during repair. What is the most likely outcome?
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A. Sapphire melts completely
B. No visible change ever
C. Internal fracture or color change
D. Increased hardness
Answer: C
Rationale: Sapphire is heat resistant but can fracture or change color under extreme heat.
4.
While soldering a gold chain, a link repeatedly breaks after repair. What is the primary cause?
A. Excess flux
B. Weak solder joint or improper heating
C. Too much polishing
D. Wrong cleaning solution
Answer: B
Rationale: Weak solder joints result in repeated failure under stress.
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5.
A jeweler uses a rotary tool too aggressively on a ring setting. What is the most likely risk?
A. Improved polish quality
B. Loss of metal detail and structural weakening
C. Increased gemstone clarity
D. Stronger prongs
Answer: B
Rationale: Excessive grinding removes material and weakens structure.
6.
During bezel setting, a stone appears loose after finishing. What step was likely missed?
A. Over-polishing bezel
B. Proper bezel burnishing and tightening
Certified Bench Jeweler (CBJ) Exam COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS YEAR-JUST
RELEASED
SUMMARIZED EXAM COVERAGE
The CBJ exam tests skills in jewelry materials, bench tools, repair techniques, stone setting, fabrication,
polishing, engraving, quality control, and safety. Candidates must demonstrate the ability to safely
repair and fabricate jewelry using professional bench techniques, identify and work with precious metals
and gemstones, execute precise stone setting, and produce high-quality finished jewelry while
maintaining safety standards and craftsmanship accuracy.
1.
A jeweler is sizing up a 14K gold ring and notices stress near the solder joint. What is the safest action?
A. Force stretch without heating
B. Anneal the ring before resizing
C. Polish before resizing
D. Use cold hammering only
, Page 2 of 126
Answer: B
Rationale: Annealing softens the metal, reducing stress and preventing cracking during resizing.
2.
During prong retipping, a diamond shows slight movement after soldering. What is the most likely issue?
A. Excess polishing
B. Weak or insufficient prong structure
C. Overheating stone
D. Wrong metal type used
Answer: B
Rationale: Loose stone movement usually indicates inadequate prong rebuilding or support.
3.
A jeweler overheats a sapphire during repair. What is the most likely outcome?
, Page 3 of 126
A. Sapphire melts completely
B. No visible change ever
C. Internal fracture or color change
D. Increased hardness
Answer: C
Rationale: Sapphire is heat resistant but can fracture or change color under extreme heat.
4.
While soldering a gold chain, a link repeatedly breaks after repair. What is the primary cause?
A. Excess flux
B. Weak solder joint or improper heating
C. Too much polishing
D. Wrong cleaning solution
Answer: B
Rationale: Weak solder joints result in repeated failure under stress.
, Page 4 of 126
5.
A jeweler uses a rotary tool too aggressively on a ring setting. What is the most likely risk?
A. Improved polish quality
B. Loss of metal detail and structural weakening
C. Increased gemstone clarity
D. Stronger prongs
Answer: B
Rationale: Excessive grinding removes material and weakens structure.
6.
During bezel setting, a stone appears loose after finishing. What step was likely missed?
A. Over-polishing bezel
B. Proper bezel burnishing and tightening
