Advapowder specialize in the production of M0-0.25 submicron diamond powder on physical crushing and classifying process with high production efficiency and capability. High intensity raw material of diamond powder conduces to high efficiency of grinding and polishing. We sell the item at an extremely low price of USD0.08/Carat. Production Feature: 1) Specific Intensity and Tenacity 2) Precise Granularity and Low Impurity 3) Specific Intensity and Tenacity 4) Strong Polishing Ability and High Wearability 5) Median Particle Size (D50) Accurately Controlled