Diamond 90% Blocking (Short Course)

• Formulas for calculating total height as a percentage and in millimeters
• Step-by-step examples for finding crown height, pavilion height, table diameter, and girdle height

• Overview of essential tools: tangs, alien keys, brass caps, girdle marker
• Proper use and maintenance of tools
• Practical exercises on using the girdle marker and Sarin Galaxy software

• Importance of proper flat on for facets
• Techniques for achieving smooth flat on
• Correct diamond setting for flat on process

• Principles of leveling and its significance
• Hands-on practice: leveling tangs
• Troubleshooting common leveling issues

• Types of diamond inclusions and their impact on polishing
• Identifying and differentiating clarity grades
• Adjusting polishing directions based on inclusions

• Understanding parameter charts and their components
• Setting parameter variations for optimal results
• Estimating final recut weight based on parameters

• Polishing techniques for bottom blocking
• Interpreting planning and current prints
• Ensuring proper diamond fixing for bottom blocking
• Exploring critical angles and table size variations

• Analyzing current prints for diamond polishing
• Identifying open facets and polishing to close culet
• Techniques for creating a pointy culet
• Making culet off-center variations

• Importance of proper alignment in diamond polishing
• Practical exercises on achieving perfect alignment
• Checking and repairing alignment issues

• Polishing techniques for top 8 blocking
• Confirming diamond fixing for top, bottom, and table
• Utilizing girdle marker for top facet marking
• Identifying and repairing facets using Sarin prints

• Ensuring proper diamond fixing for table polishing
• Finalizing and smoothing the table
• Table tilting and table down techniques

• Interpreting Sarin mapping print readings
• Reducing bottom and top variations based on print analysis

• Introduction to bruting techniques
• Controlling variations using table facets or bruting
• Repairing culet, table, and table-culet offset issues
• Identifying and repairing open culet facets

* Table tilting, down, and smoothing techniques

* Practical exercises on table polishing

• Written and practical assessments to evaluate learning outcomes
• Opportunities for feedback and improvement