1. Advanced Diamond Scanning & Rough Analysis
Before a single facet is polished, raw CVD diamond crystals undergo high-resolution 3D Sarine scanning and X-ray tomography.
By analyzing crystal tension, lattice growth planes, and minor inclusions, lapidary engineers project exact carat weight yield (e.g. 50.0% retention) and map multiple cut options.
- Multi-Zone Yield Plotting: Divides rough stones into primary (A1) and secondary (A2, B1, B2) cut paths to craft multi-stone layouts.
- Sub-Micron Laser Cleaving: Computer-guided green lasers slice rough crystals with zero thermal cracking risk.
- 3EX Proportion Calibration: Guarantees ideal table percentages (54-58%), crown angles (34-35°), and pavilion depth (40.6-41.0°).
2. From Rough Analysis to 3EX Polished Masterpiece
Once the 3D planning model is finalized, specialized diamond polishers in Surat execute high-speed grain-oriented scaife polishing, transforming raw CVD crystals into certified 3EX diamonds with maximum fire and scintillation.
Technology Advantage: High-tech 3D planning reduces material waste by over 35%, allowing Colar Diamond to offer superior direct-factory pricing on large carat solitaires.