RVD synthetic diamond 1. Economic abrasive, high grinding efficiency. 2. Irregular crystals with sharp edges and and corners. 3. Good self-sharpening Detailed Description: RVD synthetic diamond has Irregular crystals with sharp edges and corners. Designed for use in loose form, compounds and slurries, or in resin bonded tools for grinding, polishing, and lapping of hard alloys, precious and semi-precious stones, and other hard materials.