A Polish Grade refers to the quality of a diamond's surface finish after cutting and polishing. It's like rating how smooth and shiny a diamond's surface is. Think of it as similar to comparing a rough piece of wood to one that's been finely sanded - the better the polish, the more brilliance and sparkle the diamond will have. Diamond cutters and graders use terms like 'Excellent', 'Very Good', 'Good', or 'Fair' to describe polish grades. This rating is one of the important factors that affects a diamond's overall value and appearance.
Consistently achieved Polish Grade ratings of Excellent on high-value diamonds
Trained junior cutters in achieving optimal Polish Grade standards
Specialized in improving Polish Grade on previously processed stones
Typical job title: "Diamond Polishers"
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Q: How do you train others to achieve consistent excellent polish grades?
Expected Answer: Should explain their teaching methods, quality control processes, and how they help others understand the relationship between polishing techniques and final results. Should mention supervision and correction techniques.
Q: How do you handle severely damaged stones that need repolishing?
Expected Answer: Should discuss assessment procedures, risk management, and techniques for salvaging damaged stones while maintaining maximum value. Should mention when to proceed and when to avoid further work.
Q: What factors do you consider when evaluating a diamond's polish grade?
Expected Answer: Should mention surface smoothness, presence of surface marks, examining under magnification, and how different angles affect polish visibility.
Q: How do you adjust your polishing technique for different diamond shapes?
Expected Answer: Should explain how techniques vary for round vs. fancy shapes, and how different angles require different approaches to achieve optimal polish.
Q: What basic tools do you use to assess polish grade?
Expected Answer: Should be able to list basic equipment like loupes, microscopes, and lighting, and explain their basic use in polish assessment.
Q: What are the different polish grade categories?
Expected Answer: Should know the standard grades (Excellent, Very Good, Good, Fair) and be able to describe basic differences between them.