Stone Sourcing Policy
SGS sources granite, marble, and quartz slabs through verified suppliers and internal quality checks before any slab is recommended to clients.
Supplier screening
- Suppliers are evaluated on consistency, slab grading history, and documentation.
- Preference is given to suppliers with stable batch quality and traceable inventory.
- New suppliers are tested with sample batches before recommendations.
Slab inspection workflow
- Visual checks for fissures, resin fills, and surface consistency.
- Finish evaluation under multiple light conditions.
- Dimension checks for yield, thickness, and matching potential.
Documentation and transparency
Customer recommendations are based on documented inventory checks. Any change in slab availability is communicated before final confirmation.