This professional-grade Diamond Sorting Pad Deluxe 11X17 is designed to streamline your diamond sorting process. Its innovative grooved surface securely holds loose diamonds, preventing them from rolling or mixing. The high-contrast black velvet fabric provides excellent visibility for easy diamond identification and categorization. Jewelers use the finest bright white paper provided as a sorting tool. The rugged binding guarantees long life and attractive presentation. It has non-scratch, extra flat surface. The best environment for sorting stones.